Sorositute 2: Aw thanks girl. You can borrow it sometime!
Fratdaddy 1: Dude, we should get a a keg going up at the pool before we hit up the bars tonight.
Fratdaddy 2: That'd be fratty.
2.A delicious mixed drink consisting of one part boxed wine(Franz) and one part beer(Natty)
"Fratty is the drink of champions!"
Can also describe anyone who partakes in date-rape or soggy biscuit viagra parties.
Liz: "Oh, he's just going through a fratty phase, it'll pass"
"Oh shit, are you serious?! I don't remember a damn thing! FRAT!"