pack count 

The number of people an individual has had sexual intercourse with, more specifically how many women a man as had vaginal or anal intercourse in his lifetime.

Man, Bruce is a pimp! His pack count in in the high 200's.

pack count by Gary Bruce June 12, 2008

Country six pack 

When 3 pairs of siblings engage, as a group, in sexual activities

My sister and I called up Dunley and his sister and then Mary Sue and her brother and had ourselves a good ol' country six pack at our parents trailer.

Country six pack by Yoble August 27, 2014