The strongest Jamaican swear words belong to the "klaat" family: bumboklaat, raasklaat and bloodklaat. Klaat is the Patois pronunciation of "cloth", and the common explanation is that the words refer to cloths for intimate bodily use, often explained as sanitary cloths. That explanation is widely repeated but hard to prove. Either way, it helps explain why the words are so taboo. Raas on its own is milder but still rude. And Jamaica has gentle substitutes, called minced oaths, such as blouse an skirt and rahtid, that let you vent without offending anyone.
This page explains the words so you can recognize them. It isn't a recommendation to use them.
How strong are they?
| Word | Strength | Typical use | Where it's acceptable |
|---|---|---|---|
| Bloodklaat | Very strong | Fury, shock | Almost nowhere in polite company |
| Bumboklaat | Very strong | Extreme shock, anger, disbelief | Almost nowhere in polite company |
| Raasklaat | Very strong | Outrage, disbelief | Almost nowhere in polite company |
| Raas | Strong | Like "damn", "hell", "my ass" | Among close friends, still rude |
| Cho | Mild | Irritation, dismissal | Everyday |
| Rahtid | Mild | Surprise, mild shock | Most settings |
| Blouse an skirt | Clean substitute | Surprise, "good grief!" | Anywhere |
| Kiss mi neck | Mild substitute | Surprise, disbelief | Most casual settings |
People rank the three klaat words differently, and your own family or community may rank them in another order. The app's dictionary describes bloodklaat as often considered the harshest, and calls bumboklaat the heavyweight expletive. What matters is that all three are at the top of the scale.
The klaat family
Klaat (also spelled claat or clot) means "cloth". It combines with another word to form the strongest Jamaican expletives:
- Bumboklaat (also bomboclaat, bumbaclot). Bumbo is usually explained as an old word for the backside, so the whole word is commonly glossed as "backside cloth". It's used as an exclamation of shock or anger, or to intensify an insult.
- Raasklaat (also rassclaat). Raas is usually traced to English "arse", so it's often explained as "arse cloth". It works the same way as an exclamation or intensifier.
- Bloodklaat (also bloodclaat). Literally "blood cloth", and the word most directly tied to the sanitary-cloth explanation. Often considered the harshest.
Why they offend
The words combine two strong taboos: intimate body parts and bodily fluids, and in the common explanation, menstruation. For many Jamaicans, and especially older and church-going people, using them in public is a real breach of decency, not just casual swearing. Jamaica has historically treated "indecent language" in public as an offence under the law, which reflects how seriously these words have been taken.
How they're used
Grammatically, the klaat words behave like English swear words. They work as standalone exclamations, and they slot in front of nouns and adjectives as intensifiers. The app's Cuss Words lessons teach recognition with examples like:
Bumboklaat, yuh serious?!
Holy sh*t, are you serious?!
That's as far as we'll go with examples here. In speech, tone, volume and who's present matter as much as the word.
Raas: strong, not the strongest
Raas on its own is milder than the klaat words, closer to English "damn" or "my ass". It's still rude and not for polite company:
Raas, mi miss di bus!
Damn, I missed the bus!
Phrases built on it, such as kiss mi raas (a final brush-off), are much stronger than raas alone and can end a conversation.
Minced oaths: the polite alternatives
Jamaican speech has a set of softened exclamations that keep the drama of a swear word without the offence. They're the ones you can hear in front of grandparents.
Blouse an skirt
Blouse an skirt is a clean stand-in for the klaat words, with ordinary clothing in place of the taboo cloth. Use it for surprise or exasperation: "good grief!", "my goodness!"
Rahtid
Rahtid (also raatid) is a softened exclamation of surprise or shock:
Rahtid, di place hot!
Wow, this place is hot!
It's mild enough for most settings.
Kiss mi neck
Kiss mi neck is an exclamation of surprise or disbelief, often understood as a softened version of kiss mi raas. It's casual rather than polite, but it won't shock anyone.
Cho
Cho is the everyday sound of irritation, like "ugh" or "come on":
Cho, nuh badda mi.
Ugh, don't bother me.
The wordless version is kiss teet, the sharp sucking-teeth sound of disapproval, which can be more cutting than any word.
Insults that aren't swear words
Many sharp Patois insults are perfectly clean, and often more useful to understand: eediat (idiot), chupid (stupid), facety (rude, out of line), wutliss (worthless), fass (nosy), ginnal (con artist), badmind (envious, spiteful). Separately, some Jamaican insults are slurs targeting sexuality or other identities. We don't list them, and you shouldn't use them.
Online vs in Jamaica
Bumboklaat and its relatives circulate widely as memes and reaction captions, often posted by people who think of them as funny Jamaican catchphrases. That's not how they land in Jamaica. Online, the word is a joke. Said aloud to a Jamaican stranger, a market vendor or someone's grandmother, it's an obscenity. In London and Toronto, where some Jamaican swear words have passed into wider youth slang, they may be used more casually among friends, but they're still not polite.
Guidance for visitors
- Learn to recognize them, not to use them. Knowing what raasklaat means helps you read a situation. Saying it yourself rarely helps.
- Never direct them at someone. Especially not at strangers, elders, vendors, drivers or police.
- Don't use them as a party trick. A visitor saying a klaat word for laughs can come across as mocking, even when it's meant affectionately.
- If you need an exclamation, use the mild ones. Rahtid or blouse an skirt is safe, and still sounds Jamaican.
- Context changes everything. Close friends swearing together is different from a visitor saying the same word in public. When in doubt, don't.
Questions people ask
What does bumboklaat mean?
It's one of the strongest Jamaican swear words, used to express shock, anger or disbelief. Klaat means 'cloth', and the word is commonly explained as referring to a cloth used for the backside or as a sanitary cloth. It has no polite equivalent and is offensive in most Jamaican settings.
Which Jamaican curse word is the worst?
The klaat words (bumboklaat, raasklaat, bloodklaat) are all at the top. People rank them differently; the Patois Pal dictionary describes bloodklaat as often considered the harshest. All three are strongly offensive.
Is it okay for a tourist to say bumboklaat as a joke?
It's best not to. It circulates online as a meme, but in Jamaica it's genuinely offensive. Said to a stranger, an elder or a vendor, it can cause real offence, and it doesn't come across as a joke.
What can I say instead?
Rahtid ('wow!', 'good grief!'), blouse an skirt ('good grief!') and cho (irritation) are mild. They're the exclamations you can hear in front of grandparents.