Brain Glue

when your brain crawls out of your head then this helps keep it inside your brain-case. but it must be left to dry for at least 4 hours or it will just escape again.
damn im all out of brain glue. if i dont get some soon then he'll run away again.
by toaster zombie January 21, 2009
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squirrel brain

when you push all your foreskin in a in a bunch and it looks like a squirrel brain, looks very nasty.
during a drunken night, I whipped my squirrel brain out and showed my friends
by revilo nworb July 14, 2013
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peanut brain

A dumb-ass who is incapable of understanding basic concepts that come naturally to the majority of the developed world. An individual whose IQ is within 10 points or above 100.
That peanut brain called a timeout even though they had none left.
by sandlot03 March 03, 2021
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Train Brain

Similar to road head, train brain is getting a blowjob on an extremely crowded train.
Carl: Dude, I got the sickest train brain yesterday.
Chad: Nice, what happened?
Carl: I ended up cumming on the guy standing next to me and getting kicked off the train.
Chad: Gnarly.
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Koens brain

A smart thing in koens brain normally insanely smart but can be really dumb! although he is very nice
koen has such a big brain its a bit bigger than mine though we should call it koens brain
by Koenhasabigbrain December 04, 2018
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Brain Tattoo

an image which is extremely fascinating or horrifying that you see or is envisioned from a verbal description which stays in your mind for a long time or permanently to be recalled later at an inoppurtune time.
Aagh! I just got a brain tattoo of that pot-bellied dude riding a bicycle in only a speedo, a bandana, socks and shoes. I did not need to see his vienna sausage and mini plums.
by J. Gowen May 15, 2009
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Brain Fart

When your in mid-conversation and... Damn!! I forget what I was gonna say!
I can't give one because I forget what I was talking about... Duh!! Sorry everyone!

BRAIN FART!!
by scrale May 03, 2014
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