When someone thinks too highly of themself.
Betty I know you think I’m hot.”
“Jesus Chad, get you have dick in brain syndrome.”
by zzawesomeness May 14, 2018
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yo johnny you see that chick around the way....
ya man shes pretty fine and shes smart too....
ahhh hell now shes got dick for brains cuz shes fucked in the head
by deeekayyy December 13, 2008
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When you just gotten the good dick and you can’t think straight cuz you got dick on the brain.
OMG Arthur, I am so dumb today, I have major baby brain!

Shut up Alessandra! I have crippling dick brain! I got DP’d last night and have semen where my cerebrospinal fluid should be.
by Pliant member August 10, 2019
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The term used when a girl is so preoccupied with a crush she has on a boy that she is unable to function to any normal capacity.
Love, I have no appetite at the moment because I've got dick brain for Brad.
by rayclarko November 12, 2011
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A reference used to describe a person who constantly thinks about penis.
Rob: "You know Tom, i find he constantly thinks about penis."

Luke: "You could say he has dick on the brain."
by Robwhite March 07, 2009
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A Man who has a Dick for a brain and thinks with his dick
A guy who thinks with his dick and cheats on his girlfriends then thinks about his actions later in life this makes him a Dick brain
by God is here January 17, 2012
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When a girl has sex and she goes stupid over the guys dick
Man the girl I fucked last night had such bad dick brain
by May420 July 09, 2019
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