The act of ejaculating onto a non porous surface (such as PVC mattress cover) and then sliding around on it.
Chris blew his load all over the bed, then cumboated around whilst his girlfriend looked on horrified. She did not approve of his cumboating fetish.
by RobRum January 5, 2009
Get the Cumboating mug.(noun) The small depression on a woman's lower back, that is an ideal semen deposit area following doggystyle sex. Often adorned with a trampstamp to mark the ejaculatory bulls-eye.
by GrayMac May 7, 2010
Get the Cumtrough mug.by petezaroll January 15, 2019
Get the cumbrle mug.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 1, 2019
Get the cumbrain mug.Someone who is openly horny online, (primarily twitter), and has absolutely no problem embarrassing his or herself with their creepiness. Made popular by Noel Miller and his two mates.
by Big juicy bussy 69 July 17, 2019
Get the Cumbrian mug.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
Get the cumbrain mug.