Someone who thinks almost exclusively with their dick (or vagina) and goes on and on about porn and anime tiddies to the point of being annoying. Might also be an incel. Should probably have sex and stop watching so much porn so they can stop obsessing over it. Will likely argue that being interested in sex is natural or some bullshit, ignoring the fact that fapping 5 times a day isn't normal at all.
Person 1: What's your favorite Metroid game?
Person 2: For me, it's Samus. I WANNA FUCK SAMUS I WANNA FUCK THAT GAP IN HER THIGH WHEN SHE HAS HER SUIT ON AGGGHHHHH I WANT HER TO SUFFOCATE ME WITH HER TITS MOMMY MOMMY I WANT MILKIES RAGHGAHGAHGA I WANT A GF I WANT A GF GAHRUAWIGHAUHD
Person 3: Settle down, cumbrain
Person 2: For me, it's Samus. I WANNA FUCK SAMUS I WANNA FUCK THAT GAP IN HER THIGH WHEN SHE HAS HER SUIT ON AGGGHHHHH I WANT HER TO SUFFOCATE ME WITH HER TITS MOMMY MOMMY I WANT MILKIES RAGHGAHGAHGA I WANT A GF I WANT A GF GAHRUAWIGHAUHD
Person 3: Settle down, cumbrain
by ebinvirgin August 2, 2019
someone who is overly addicted to pornography and/or masturbation. the name has been originated and gained some popularity from 4chan.
person #1: “have you seen person #3? i didn’t find him at school today.”
person #2: “he’s probably at home watching porn as usual.”
person #1 “why does he never do anything but watch porn? he’s such a cumbrain..”
person #2: “he’s probably at home watching porn as usual.”
person #1 “why does he never do anything but watch porn? he’s such a cumbrain..”
by zaitra January 6, 2021
Such a perfect insult to throw at your opponent.
To where you can literally hear the cum swishing around in someones brain.
To where you can literally hear the cum swishing around in someones brain.
Sorry man, I don't fucking speak the tongue of cumbrain.
OMG! I bet she so practices cumbrainism! What a SLUT!
OMG! I bet she so practices cumbrainism! What a SLUT!
by Lmaonade.mmm.yummy February 25, 2020
A person who is so strongly induced in porn they can't think, speak nor act normally. Their mind is completely gone and they only think about porn. This is similar to a coomer however they literally act like porn addicted zombies
Person 1: Bro look at that dude, he looks so good
Person 2: He is so hot i want him to violently fuck me
Person 2 walks up to the dude and takes a picture of his arse
Person 1: wtf you cumbrainer
Person 2: He is so hot i want him to violently fuck me
Person 2 walks up to the dude and takes a picture of his arse
Person 1: wtf you cumbrainer
by Editamio March 14, 2022
Verb- The after effects of orgasming many times after sex and or masturbation including foggy memory, sleepiness, giddiness, zoned out.
aka Cumming your brains out. Can also be spelled "coom brained"
aka Cumming your brains out. Can also be spelled "coom brained"
You were so cumbrained last night you passed right out afterwards it was cute.
I tried playing video games with you afterwards but I was too cumbrained to focus.
I tried playing video games with you afterwards but I was too cumbrained to focus.
by Biggis Dickus May 16, 2023
Brian: Ayoooo guess whose feet I just scored!?
Tom: For the last time Brian, stop asking random girls for feet pics and go touch some grass you cumbrain.
Tom: For the last time Brian, stop asking random girls for feet pics and go touch some grass you cumbrain.
by Mary Mary Quite The Contrarian March 28, 2023