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A friend who will laugh with you when you fart, no matter how rancid the smell, while everyone else leaves the room angrily.
You're a good fart buddy Rob
by Nickya April 14, 2007
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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
A pal who takes the blame for the fart you ripped
I let out a fart at my girlfriend's dinner party, but her dad acted as my fart buddy and took the blame.
by yo-what-is-up-my-dawg November 03, 2003
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3
A friend who farts with you while you fart.
1: Fart!
2: Fart!
1: Oh 2! You're such a fart buddy!
by Marisela July 25, 2004
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