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Cumcentration 

The skill required to keep yourself from prematurely ejaculating when having sex with a significant other.
Steve: So I was fucking my main bitch last night, and I was pretty nervous and scared that I'd blow my load.
Alan: What'd you do?
Steve: I just thought about rainbows and shit.
Alan: Whoa that must've taken tons of cumcentration.

Sophie: I have this jewish boyfriend, and he keeps prematurely ejaculating.
Oprah: Bitch you gotta send your man to a cumcentration camp.
Sohpie: Oprah, that's very socially insensitive, I dont make fun of you for being a queefopotamus, do I?
Cumcentration by Germ604 June 25, 2009
Related Words
A straight-up cum addict. This fuck can't go 30 minutes without having an orgasm! By the time this sick bastard is 22, his balls will be raisins in a sack!
"Damn, Chris is a straight-up cumer, just look at him!"
Cumer by Ocide December 28, 2020

Cementing 

Shitting on someone and rubbing it in with your bum.
Cementing on people is fun.
Cementing by Paypar January 4, 2015

Vitamin cmen 

A healthy milky colored liquid all women should take 2 to 3 times a day, apply liberally to the face, breasts then ingest.
Causes smooth skin, eternal youth etc.. (keep spreading that i need my girlfriend to swallow more)
Dawn: Hey Carly have you had your vitamin cmen today?

Carly: Oh yes, all 3 times, i would have gone more but Fred was used up. Wuss.
Vitamin cmen by Radnar The Red August 31, 2012
When someone is so good at sex that they seem to control when you cum. Much like being a water, fire, earth, or air bender in Avatar. Can be male or female.
Damn she really is a cumbender I came before I even knew what happened.
Cumbender by Holldaddy August 24, 2019

cement truck 

When your partner (preferable one who has given you blueballs), roommate, or drunken friend is asleep/passed out, you jizz on their eyes then twist their eye lashes in the hot jizzum and let it dry over night. Hopefully when they wake up the next morning, they won't be able to open their eyes and will think they have gone blind while you laugh and laugh.

Noun or verb, either's cool
Man1: Dude I gave my roommate Joshie a cement truck last night when he was passed out.

Man2: You're not a very good friend D-bag
cement truck by M3RDLOUNGE June 2, 2008