3 definitions by Matt Park
The term yam sack originated from the bag that farm workers would hang from their belt in front of them while harvesting yams. Now the term yam sack is generally used in reference to the testicles or bean bag. Also see yam bag.
by Matt Park February 7, 2005
In the military world, it is a scumbag who has not been to airborne school and successfully jumped from an airplane at least 5 times.
by Matt Park June 10, 2004
by Matt Park September 11, 2005