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Originates from the End of the World flash movie, and was said by the Kangaroo before the world ended. Means literally "what the fuck, mate?" and is said in moments of confusion, surprise, or disgust. Is especially popular amoung slightly nerdy high school intellectuals who like flash movies like "Weebl and Bob" and "Homestar Runner."
Julie: Dude, we have a test in AP Chem today.
Bob: WTF, mate?
by Marina November 15, 2004
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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
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2
What the Kangaroo said in that one video where the world gets blown up by nukes.
by Adeadlyliquid November 14, 2004
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