1. To "wasa" someone means to "dig up" (aka maco) in somone's business/ personal affairs with the intent to hurt somebody boy or girl child.
2. To "wasa" something can also mean to jackass the scene (aka make things worse than it already is).
This would be in direct correlation to Wasa's ability to simply make every situation from 0 to 100.
example 1."I will wasa you up if you nah stop play wit me inno! watch yuhself"
example 2. "Look what I wasa bout she the other day there"
example 3. "Look how trinis like to wasa up the place."