2 definitions by nate fingerman
when you're making out with a chick, and you slide your hands down her pants and pinch her bare ass. UNDERBITE!!! see the intruder...
by nate fingerman July 17, 2006
1. while making out with a chick, you slide your hands down her pants and put your digits in her vagina.
2. reverse underbite with penetration.
2. reverse underbite with penetration.
by nate fingerman July 17, 2006