1 definition by BrokenZebra
Straight gay best friend. They are just like a gay best friend forever (gbff), but they are straight.
"Dude, why are they going clothes shopping? Is Bill gay?"
"Naw man, he's just her sgbff."
"Oh, that explains it."
"Naw man, he's just her sgbff."
"Oh, that explains it."
by BrokenZebra August 19, 2011