Phat Sack

A large, sometimes burlap, bag/sack containing an ounce (28 grams) or more of marijuana.

Derek: "When I went to pick up some weed from my dealer I spotted a phat sack layin in the back seat."
Mitchell: "How much was in it?"
Derek: "Atleast 2 ounces!"

by The Big DC September 7, 2005