Would you call a sorority a sore?
Would you call your mother a moth?
Then don't call a fraternity a frat!!!! It's so offensive, and sounds very uneducated and stupid. When I hear other greeks do this I want to SCREAM!!!
Maybe we should have a special spell-check modifier on this site so we can write frat & have it come out fraternity...because it is a pain in the a$$ to write!!!