Top definition
A person obsessed with sex to the point where it becomes a detriment to their abilities to socialize and think through problems.
by Balanced Breakfast January 15, 2019
2
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 01, 2019
3
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 06, 2021
4
An adjective used for someone who is constantly horny. To be used as insult to male who thinks about sexually activity 24/7.
"Yeah I kept asking her for nudes but she didn't send any."
"Stop begging for nudes and actually get a life you cumbrain."
"Stop begging for nudes and actually get a life you cumbrain."
by schoeymmii July 17, 2019
5
Degrading, but fitting name to call a sexually active woman who isn't very intelligent and who has the compulsive habit/desire to give men oral sex.
Your mom: "Mmmmmh, mmmmmh, mmmmmmm."
Plumber: "Ooo yeah! Polish my tool, bitch!"
Your mom: "Mmmmmmm."
Plumber: "Okay you can stop now. I'm gonna "fix your sink" now. *gets out condom and lubricant*"
Your mom: "Mmmmmh yeah, mmmmmh, mmmmmmm, mmmmmh, mmmmmh, mmmmmmmmmmm!"
Plumber: "I said STOP now, Cum Brains!"
Your mom: "Mmm, mmmmmmm?"
Plumber: "You've got a bad case of oral fixation you know."
Mark H. Proud UD author since February 2004.
Plumber: "Ooo yeah! Polish my tool, bitch!"
Your mom: "Mmmmmmm."
Plumber: "Okay you can stop now. I'm gonna "fix your sink" now. *gets out condom and lubricant*"
Your mom: "Mmmmmh yeah, mmmmmh, mmmmmmm, mmmmmh, mmmmmh, mmmmmmmmmmm!"
Plumber: "I said STOP now, Cum Brains!"
Your mom: "Mmm, mmmmmmm?"
Plumber: "You've got a bad case of oral fixation you know."
Mark H. Proud UD author since February 2004.
by Mark H July 25, 2005
6
When you’re in a mental state of horniness and you can’t think straight. Usually the stage before post nut clarity.
Sarah: *out of breath* Did you say you loved me?!?
Bobby: *also out of breath* Oh shit my bad I had cum brain. Sorry I wasn’t thinking straight.
Bobby: *also out of breath* Oh shit my bad I had cum brain. Sorry I wasn’t thinking straight.
by iamanthonydean January 15, 2021