What “Dash” means
Dash means to throw. "Dash weh" means to throw away, and figuratively to waste money or chances. It can also describe throwing water or liquid on something.
Examples
Nuh tell mi seh yuh a guh dash it weh pon foolishness.
Don't tell me you're going to throw it away on foolishness.
Dash weh dat old food.
Throw away that old food.
How to use it
Neutral and everyday.