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When you blow your load in a girls hair, then mix it all around, when it hardens, she has lovely cum locks
Man, did you see Sarah rockin' those cumlocks? She got it bad.
by Jip! June 22, 2006
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When one's hair mats up because of semen, giving the appearance of dreadlocks.
He totally blew his load in my hair and now I've got cumlocks.
by Ranger R January 06, 2011
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When you're about to cum inside a girl but you lock the stream. (Side effects: "blueballs")
Last night when i fucked my mom i pulled a cumlock to prevent her from getting me another brother.
by Jihad Elephant April 20, 2015
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A situation in which a girl rides a dick, typically cowgirl fashion, and will not get off until she is blown a hot load of cum.
I don’t think this is working, maybe we’ll just try again tomorrow.

“Nope, you’re on cum lock now...”
Wh—what?? Isn’t that rape?

“Nope, it’s 2018 and you’re a guy, I can’t rape you. Now, anyways *rides dick*”
by TheAlwaysCorrect1 May 22, 2018
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