To over-think or over-analyze something (which is usually quite simple).
driver: Hey bro, throw some music in, I'm tired of this shit.
Passenger: Umm.. let's see...
Driver: (5 minutes later) Dude, don't brain fuck it, just grab a CD and throw it in.

by frickinwillie June 3, 2006
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One who believes brain-fuckers, usually because they are too lazy to think critically. They are easily persuaded by arguments that are: (1) emotional rhetoric that contain few (if any) facts, (2), conspiracy theories and accusations against opponents that are not supported by evidence, (3) arguments that opponents are members of "discredited" groups (i.e. globalists, liberals, racists, etc.)
"That guy is always repeating what Joe Bigot said on talk-radio."
"Yeah, he is thoroughly brain-fucked!
by Dr Wierdsmith December 14, 2019
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The act of inserting ones penis in a persons ear and literally fucking someone else’s brain
Guy 1: how did your wife die again?
Guy 2: we were brain fucking a bit to hard
by No cool name ideas January 20, 2020
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To over-think or over-analyze something (which is usually quite simple).
driver: Hey bro, throw some music in, I'm tired of this shit.
Passenger: Umm.. let's see...
Driver: (5 minutes later)Dude, don't brain fuck it, just grab a CD and throw it in.

by frickinwillie June 3, 2006
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The act of orgasming into another persons brain cavity through the nose. Can also be done via syringe.
I feel like someone gave me a Belgium Brain Fuck.

or

Id rather have a Belgium Brain Fuck then an Alabama Hot Pocket
by Dutch Kace January 11, 2011
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A fucking cuntmuffin who posts racist terms such as nigger or chink and gives an accurate definition such as "derogatory name for african americans", who then in there exmaple make some stupid ass comment thats racist as fuck showing that the writer of the definition should go jump in a leech infested swamp and shoot themselves in the testicles (clit for dumb cunt bitches) then saw the top half of there own head of with a hacksaw.
Guy putting an example for gook: ""you should be proud to be a gook, it wasn't your choice to be born one!""

other guy: wtf you stupid dick-for-brains-fuck-giraffe im gonna go to your house and kill your family then feed your sister to your dog.
by 546567589 October 10, 2007
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The slightly incapacitated state of mind after a proper, vigorous fucking... and at least one orgasm.
You're under the influence of fuck brain, dude... you just asked me to MARRY you!!! LOL
by Scrappy SamCat January 28, 2009
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