The ultimate insult. Topically used by 13 yr old on x box live who think their cool but who actually have no friends.
Adolescent 1: u succ!
Adolescent 2: I slept with ur mom.
Adolescent 2: *dies*
1. usually used by kids who think they are cool but really are not at all
2. a really stupid overrated comeback
Person A: oh, i slept so bad last night
Person B: yeah, and i slept w/ ur mom