Definitions by Dr. Cole K Ziebarth, IV

Possum in a sack

Possum in a sack
A girl who acts like a dead fish in bed. Possum(girl playing dead) sack(bed)

I was hooking up with Bobbie Sue McGillicutty the other day, she was a total possum in a sack, she just laid there and did nothing as I was giving her the best 2 minutes of her life.

Possum in a sack by Dr. Cole K Ziebarth, IV May 7, 2008