During sex when a man packs a fat lip of lady grizz (chewing tobacco) and is banging a girl from behind. When he approaches climax he starts making beeping noises like a truck in reverse, and proceeds to pull his bottom lip outward and tilting his head downward allowing the warm clump of chew to fall on the girls back.
1) Bro, i was hittin it from behind with a fat boy in and then i dump trucked a huge shwab of grizz wintergreen on her ass.

2) Dude, me and that chick banged at the party last night, but i didn't have time to take out my lipper so i had to dump truck her ass.
by Lax Bro Leroy March 16, 2011
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When you a fuck a girl in the ass and shit comes out of her when you pull out.
" Suzy last night let me fuck her in the ass, too bad she turned into a dump truck".
by Leeroy Jenkins867 May 23, 2012
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A loser. A lame fuck with nothing to live for.
Heather was drunk at the bar screaming about how nobody will ever love her and she will never have kids. What a dump truck.
by suspicious-character September 14, 2010
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a female with a large/big/phat booty; a female with a donk
"shawty got that dump truck"
"back it up & dump it on me like a dump truck"
by smurf89 January 16, 2009
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A person with no common sense, really dumb. or a person that you think is stupid being the way they look or act. it can also be used as an insult. someone that would remind you of an actual dump truck(big slow dumb and ugly)
A: that kid just got caught pooping in a parking lot
B: Wow what a dump truck
A:yeah that kid is a dump turck
by scissor kicking February 23, 2011
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When somebody opens their asshole and another person shits in it, they may pass the shit back and forth.
"Can you hold this for me? "

"You mean like dump trucking?
by MayonnaiseCoveredTitties June 12, 2018
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