Top definition
Knickname for Sigma Nu fraternity. Used in a completely endearing way. Also referred to as Sigma Who? and Snu's. Sigma Boo on Halloween.

You won't get raped at their parties.
Girl #1: Those guys are so cool, what frat are they in?
Girl #2: Oh, they're my Sigma Poo's!
by Snuforeverrrr January 17, 2012
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