Greek organization, often times in representation of both fraternities and sororities..generally used during times of extreme intoxication or hangover
Hey brah, are you going to the sorternity kegger tonight?
by BANGERS69 February 06, 2011
1 more definition
Sorternity is when a house is both a fraternity and sorority. Men and women both living together in "harmony." Amen.
'I'd love to live in a Sorternity when I'm older! Makes me so excited, I become absolutely weak in the knees!'
by Rengose December 19, 2014