Someone who thinks almost exclusively with their dick (or vagina) and goes on and on about porn and anime tiddiesto 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
A person obsessed with sex to the point where it becomes a detriment to their abilities to socialize and think through problems. They typically act perverted and a threat to women.
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