to slide one's ass means to hit them in an unpleasant manner by grabbing the opponent's hair then throwing several blows upon blows to their face causing them to maneuver back or in other words slide.
if you keep talking sh*t i swear ima slide your ass
Using someone who has wronged you in the past usually while you're deciding if it's worth keeping the relationship or not. It could also mean going behind someone's back or getting back at someone for something they did wrong.
My ex-girl was a head case, I can no longer defend her. I finnaslime you out.