Top definition
When a girl is peeing on the toilet and gives you head.
Dude, Jane gave me peebrain last night.
by MackDaddy14 December 18, 2020
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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
Means that a person brain is the size of a pea the kind you eat as a vegetable.
For example, a peebrain would have to look up what peebrain means and would think I was talking about urine, or telling my mind to pee.
by Joe Junior February 17, 2004
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4
A person whose brain is of no use to them. A stupid person, airhead, dumbminded, idiot, useless, a fucked up person.
Don't you know junior 2+2=4 not 5 you "peebrain".

That boy's braincells have turned into liquid almost as if he has no brain cells and deserves to be called a "peebrain".
by Joe Junior February 17, 2004
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5
When two boys power piss into a girls ears
Jeff & Andrew really pee brained Carly.
by Andy89 August 01, 2020
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