1. One who is so gay that his gayness dwarfs the gayness of all other fags. (Fag Juggernaut)
2. A fag of astronomical proportions.
3. A really big bundle of sticks.
A person who is decidedly homosexual but conveys being straight. "Fagger" being the gay part and "nanner" meaning how fruity they are, just two words for gay smashed together...basically.
Wow, he sure acts like he wants to mate with girls but I have a feeling he's actuallyquite the "Faggernanner"