Synonym for Thirty Pack. Refers to a package of 30 beers, usually cheap beer.
Hey man, you bringin' a Dirty Snack tonight? We're jonesing for some suds.

by Wigsten October 24, 2006
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30-pack of beer.
Hey, since we've got band practice tonight, would you mind stoppin' on the way in and pickin' up a dirty snack?
by cinnamonjack November 10, 2009
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The name given to any kind of unhealthy food. Burgers, Chocolate, cake, crisps, chips. (the good stuff!)
Feeling a bit hungary, Dave went to the vending machine for a dirty snack.
by BOBtheDAZZLER March 2, 2009
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When you hold a snack-pak up to the puss and she Siphons the pudding into the puss, then you fuck the puss, pull out and have her eat the pudding off your dick
I did the dirty snack pak with Sasha last night, boy does she love eating the pudding off my dick
by Jimmy Jam Big D October 15, 2018
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