cockbrain 

when the male uses his cock as a secondary brain, often resulting in unfortunate choices and loss of girlfriend and or bodily harm caused by aforementioned girlfriend.

man i was so cockbrain last night, i had a great time but my girlfriend kicked me in the sack this morning

cockbrain by IMMA MAN December 3, 2009

cockbrain 

A girl who is always talking about penises.

Kristen is being a huge cockbrain today.

cockbrain by Johnny Hancock March 24, 2007

cockbrain 

a guy who only thinks about his dick and goes from one girl to another.

john is such a cockbrain--he was just dating bridget but after he fucked her he dumped her for anne

cockbrain by youngandinsane March 30, 2007

CockBrain 

someone who says something stupid cuz they been sucking to much.

person1: yo did u see the sky change orange?
person2: dog what is u talkin bout u gots that CockBrain!

CockBrain by Matt "Big Dog" Dudley October 24, 2008

cockbrain 

When a guy hits a girl in the face with his penis. This often happens when a girl is giving a guy head. Usually an absurd gesture that a man will do to a promiscuous woman.

Guy: "So i was getting with Cheryl, and I totally cockbrained her!"

Guy 2: "Dude, she's got a shiner now!"

cockbrain by Blob09 April 11, 2010

Cockbrain

An extremely fragile person (almost exclusively a redditor) who is also an extremely, gigantic performative for internet points/approval. He has no real hate in his heart, so his insults are stupid and edgy (even though he thinks they're smart). He will be offended to death by even mildly indirect "racist" jokes. He has no idea what real violence is (although he pretends to know and pretends to be sensitized and highly against) and a gore video (or the average instagram comment section) is enough to annihilate him down to planck length.

Example 1: He is such a cockbrain. Why is he crying over IG users spamming "nigga"?

Example 2: Look at that cockbrain. He's saying that the West is evil for karma farming again.

Cockbrain by Imperium/ June 1, 2026

Cockbrain

An extremely fragile person (almost exclusively a redditor) who is also an extremely, gigantic performative for internet points/approval. He has no real hate in his heart, so his insults are stupid and edgy (even though he thinks they're smart). He will be offended to death by even mildly indirect "racist" jokes. He has no idea what real violence is (although he pretends to know and pretends to be sensitized and highly against) and a gore video (or the average instagram comment section) is enough to annihilate him down to planck length.

Example 1: He is such a cockbrain. Why is he crying over IG users spamming "nigga"?

Example 2: Look at that cockbrain. He's saying that the West is evil for karma farming again.

Cockbrain by Imperium/ June 1, 2026