Definitions by The Jorny Geenis and HB 2

F.B.

A female boner. A hypothetical state of horniness in women. Also can be F.E. (Female Erection)

"Dude, if I were a guy I totally would ahve had a boner" "Ahh! you had an FB!!"

F.B. by The Jorny Geenis and HB 2 October 14, 2004