form of;/ courting ritual generally used by professional/cranium loving people to entice the intellect (aka brain/largest erogonous zone).. necessary connection if one hopes to fornicate with the highest form of cromagnum man (woman)

male version_"dude that chick is hot,"yah but i dont have the energy to brain-fuck her tonight"
female version "Sister, he's cute but he hasn't brain- fucked me yet"
by urban ruby October 29, 2007
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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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When a man fucks a woman so good she orgasms multiple times, trembles/shakes uncontrollably, is unable to speak properly and needs to sleep afterwords to recover.
Ted: Fucked me girlfriend last night good and proper, she couldn't speak properly afterwords.

Bob: Thats because you fucked her brains out man.

Ted: Fucking right i did!
by Retro-Cat February 29, 2016
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when a man fucked a women so hard she had multiple orgasms and shakes her legs while she cant control it and also takes a fat ass nap afterwards.
Trey: "fucked her brains out "
Kevin: " damn she shaking?"
Trey: " hell yea"
Kevin: "my boi"
by Jaedyn <3 March 30, 2022
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To fuck for a long period of time..... Quickly. As in thrusting fast for hours. To make both man and woman climax multiple times in an hour. To make a head imprint or dent in a headboard.
A fun weekend, to Fuck your Brains out with sarah!!
by Sarahjinkens October 22, 2010
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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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to have sex with (someone) energetically
If Paris Hilton was my girlfriend, I'd fuck her brains out.
by Atheer May 9, 2007
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