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 15, 2011

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Top Definition
tucking the cock and balls between the legs and proceeding to ejaculate in the female's mouth while backing up and dropping a steamy load on her chest making crazy beeping noises like a dump truck
"Beep Beep Beep," said Little Eugene as he dropped a killer deuce all over Molly and her twin sister. "Now THAT's what I call a dump truck!"
by Shadie August 23, 2006

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While in the sixty nine position the individual on top slowly sits up (much like the motion of a dump trucks bed) while making a beeping sound, and proceeds to defecate on the face of his/her partner.
He pulled the dump truck on her.
by Jordan Martin September 24, 2006

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Popular novel by author Clayton Bigsby
by Anonymous September 24, 2003

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Derogatory term for a criminal defence lawyer who accepts large numbers of clients with the intention of pleading them guilty as quickly as possible in order to make money on volume.
I wanted to challenge the charge on constitutional grounds, but my lawyer's a dump truck and sold me out to the prosecution.
by NoJusticeNoPeace April 20, 2009

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The act of shitting in a girls mouth while she gives you a rim job.
Bitch gave me a rim job so i decided i would return the favor with a steaming dumptruck.
by WetSocK June 15, 2004

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A trending metaphorical term to describe a specific type of large "booty". Dumptruck refers to a booty that typically exceeds the measurement of 40".
"Damn son! She didn't just have a bubble butt, she had a dumptruck!"
by K Trey August 14, 2013

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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.
Wouldn't you love to see Simon Cowell dumptruck Cheryl Cole?
by Westcountry Lad April 08, 2011

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