Top definition
Oat Sack: The exceptionally large sweater collar that folds over and then droops down if the front and when worn by a large woman (see Big Sweat), it has the appearance of a feed bag.
Me: Did you notice Jen's oat sack?

You: Yeah, that corn-fed bitch probably has it stuffed with Chips-Ahoy!
by McTimmy February 11, 2010
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug