Top definition
When the buttocks are so firm and round. Having a rear end the makes other very jealous. A very strong looking backside.
The girl can sure fill out those jeans with her buttchucks.
by Toasterjam September 12, 2012
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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A person, oftentimes a young male, who whines incessently too the point of driving those around them crazy. Oftentimes the whining is accompanied by extreme stubbornness and a refusal to admit when one is wrong.
Ex. The buttchuck refused to do his homework, instead, for ten minutes he listed all of the reasons he shoudn't.
by 101N January 12, 2009
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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The ultimate insult you could bestow upon anyone who talks bullshit all the time. as a double whammy this word also means the explosive matter that could come out of the ass at such great speeds that it seems like your arse has been out drinkin to much last night.
Example 1;

Person 1: So I saved the entire population of Ireland with a string and a folk!

Person 2: Bullshit you did you buttchuck!

Example 2;
Man I had the biggest buttchuckin session last night!
by Edens Shadow January 13, 2008
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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