look up any word, like dirty sanchez:
 
1.
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
 
2.
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
 
4.
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
 
5.
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
 
6.
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
 
7.
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