Top definition
A fat chick; A fat chick with a big bottom. Bags of milk come in White and Chocolate form.
Man, Betty is nice and all, but she is such a bag of milk. She walks up the stairs and leaves puddled of sweat behind.
by Larzen-GF August 11, 2011
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2
Blubbery human beings containing no redeeming traits. Conversations with said Bags of Milk lead others to feel less intelligent upon departure.
"Wow, did you see Mike Mac last night?" "Yeah dude, huge bag of milk, whole milk"
by TgutIsAJobroni November 24, 2016
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