v. int. The act of pushing one's face in between a persons butt cheeks, and rocking one's head side to side very rapidly while making a vigorous, lip-vibrating "brrr" sound.

n. The sound produced when performing a dumptruck.

The act of shitting in a girls mouth while she gives you a rim job.

A female who has no respect and likes to be used for sex.

one who is garbage or unskilled
fuck up
SEE; TRUCK

Taking an unexpected shit while reciving a rim job

If you see a good looking girl with a nice ass, plain and simple she is a "dump truck". Why? because you want this girl to come home with you and have her back it up and dump her booty on you. Meaning even more specifically intercourse using the doggy style position.

When you a fuck a girl in the ass and shit comes out of her when you pull out.