Top definition
Not a True Fan

Active: an insult when calling bullshit about a level of fandom, used to call out a poser/noob/rookie/padawan

Passive: a point of preference to indicate you don't really like something
Active:

Customer: Sure I like Star Trek. Boba Fett is my favorite character.

Comic Shop Clerk: N.A.T.F.! (while pointing)

Passive:

Guy who's Music taste you used to respect: Hey man, Pearl Jam is coming to town soon, wanna get tickets?

You: Meh, N.A.T.F.
by Rocker Tycoon April 08, 2012
Get a N.A.T.F. mug for your mate Rihanna.
Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
Get the brain worms neck gaiter and mug.