when you are on the highway and see a dumptruck dripping out liqiud/juice usually of white in color.
i was stuck in traffic behind a dumptruck slingin dumptruck juice all over my car!
by SexyTexan January 11, 2012
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When you shit in a sombrero and later use defecation as nacho dip.
Maybe later me and my friends will have the old Mexican Dumptruck.

Why use cheese when you have the Mexican Dumptruck?
by antiari January 06, 2014
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The act of shitting in a persons mouth while receiving a rusty trombone.
brett: "dude, i gave that chick a rusty dumptruck last night..."

matt: "did she enjoy it?"

brett: "no...not at all, but i sure did"

by twodollarforty December 20, 2007
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"Hey Jose, we need another Mexican Dumptruck load of concrete over here."
by deggy June 11, 2013
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Referenced in 2 1/2 Men

The "Threesome Episode" where the Sausagefest came before the Clambake.

"Let's lay down some ground rules ...."
"... everything goes!"
"Wait, are you sure that everything goes? Even the Philadelphia Dumptruck?"
"Back it up, baby, beep-beep-beep."
Philadelphia Dumptruck, aka, the dumptruck... When a man straddles over a woman's back and puts down a little dna walking backwards.
by Been Her October 11, 2012
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Martha dumptruck is a fugly chick in the 80s movie Heather's, and the 21th century musical that reprised it. Popularized by the tiktok meme powered by the Heather's musical
Heather: Martha dumptruck in the flesh, here comes the cootie squad.

Heather2: Shut up Heather

Heather: Sorry Heather
by GoldenScratch October 28, 2019
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the act of violating a friends toilet, by having multiple people shit in it and not flushing.
pritts was so mad when harmon and kiki went team dumptruck on his toilet.
by Frank McClusky, CI November 01, 2005
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