Stands for "Gay is not a synonym for shitty" This was originally a quote by Pete Wentz, bassist from Fall Out boy and got turned into a song. Used when someone uses gay to describe something shitty, though it really means homosexual.
Person 1:"That movie was so gay."
Person 2:"G.I.N.A.S.F.S. dude."
OR
Person 1:"That song is so gay."
Person 2:"Don't say that because G.I.N.A.S.F.S.: Gay is not a synonym for shitty."
Name of the bonus track on Fall Out Boys album 'Infinity on High'
Stands for GAY IS NOT A SYNONYM FOR SHITTY something which was said by Pete Wentz in a previous interview.
RetardedFOB Fan: Dude what the HELL does that FOB track stand for??
Person: What? G.I.N.A.S.F.S