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The build up of faecal matter and sweat that collects within ones arse cheeks particularly during hot weather or prolonged exposure to leather furniture and PS3 marathons.
Greg – “Seriously Phil, were going to have to pause this awesome game of ‘Call of Duty, Black Ops’”

Phil – “...the fuck dude! We’re just getting to the end of Nuke Town...”

Greg – “I know, sorry buddy, I gotta sort something out...”

Phil – “Oh right, you need a shit”

Greg – “Nah... it's just that i’ve been sitting here for 11 hours now and i’ve got serious arse jam
by tincopper February 13, 2011
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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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