This was a phrase popular in Northern Lower Michigan in the mid-to-late 1980's.  It is believed to have originated from a highschool teacher in Pentwater trying to calm down a classroom before lunch hour.  It was uttered in various circumstances, generally associated with mealtimes.
Kids standing in line at a McDonald's.  One turns to the other and shouts (preferably in the other's ear): Wanna eat? Shut up then!
by dcurtis3727 March 14, 2008
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It’s when a girl gives a really good Blowjob/bj
You: Have can you give me a BJ
Girl:I’ll eat you up
by F á č k š November 25, 2021
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Expression meant to basically say, Deal with it. Don’t bother trying to explain yourself or do anything. They have won.
Boy you better Eat that dick up , I ain’t hearing shit you talking bout!
by Comedian95 January 12, 2023
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Guy1: aye you need to cut yo hair

Guy2:man eat that dick up
by Godlike:) April 29, 2018
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Consume a penis in the upward direction. See eat a dick, dick-eater.
"I just finished the last empanada."
"Eat a dick up."
by Ellis August 22, 2004
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in the 1933 Little Rascals film titled The Kid from Borneo (1933)The kids' uncle George, whom they've never seen, is the black sheep of the family, and their father won't let him come visit. George is a promoter, and the kids mistake his Wild Man of Borneo for their uncle himself and bring him home. But the Wild Man has a sweet tooth, and his near-constant chant of "yum yum, eat'em up!" is predictably mistaken by the kids. Chaos ensues.
Man from borneo lifts bed skirt (where some of the kids are hiding) and chants 'Yum yum eat em up'
by Pedro October 28, 2004
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