Good old-fashioned.

A word used by morons, generally males, who think theyre cool. This word is sometimes used in code to express a secret word that tends to vary. Occasionally the party using this word will make up multiple spellings so the surrounding people will not find out what their "genius" code word means. The people who use "gof" are usually the same douche bags that use the word "Clutch".

1. Grenade of Fuck
2. Shaking and dropping a 2-liter bottle (cap-first) from a car moving at high speeds.

Goddamn Obnoxious Fan
Basically any person that crosses over from being enthusiastic about a subject to being a fanatical ass-hat that slams anyone who doesn't agree with his/her views. GOFs can rise out of any subject including, but not limited to StarWars, anime, rock bands, games, and TV shows.

(n.) Abbreviation for Good Old Fashion Sleepover

Good ol' friend

The Game of Football, ie. the one and only thing in life that should matter. Origins traced to Michigan, specifcly Metro-Detroit/Rochester area. Originated by Coach Calvin Gross, of the Stoney Creek Cougars football team