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 finna slime you out.
the action of using someone for sex
I’m sliming you out till the morning. And when I call you , you’re going to want me to slime you out again.