Someone who is "gay as all fuck" a derivative of "gay as all get out." The ultimate use of the word "gay". GAAF usually refers to someone who is so ignorant they don't realize how lame they really are. Can be used in any way, shape or form.
-Mike is such a GAAF for playing CS 70 hours a week.
-Dude, don't look at me like that you GAAF.
-This party is/sucks GAAF dude.