You are getting a blowjob and just before you explode, you tell your partner to smile then you unload your cum all over their teeth!
Man she gave me such a great blow job I crested her!
No blow job is complete without crest!!
by Buttsacola July 30, 2010
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when a man ejeculates on a person without knowing and becomes hard on their clothing and makes it look like a crusty substance.
haha hey romolo i crested on jerrys shirt.
by xRICKx September 27, 2010
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verb

The act of putting a dollop of toothpaste on the tip of the penis and brushing another's teeth with the penis, as though it were a toothbrush.
As Sid was cresting the girl, he advised, "Make sure you get your molars!"
by Sidney-the-kidney February 22, 2012
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Crips
Rollin
East
Side
Territories
Yea We Crips from the east bkut most niggaz call us the CREST.
by BLUEFACE January 2, 2008
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To sex someone, harder than usual, but not as hard as possible.
I think we should Crest, Ben.
Hell yeah.
by +♥♥♥+Crest+♥♥♥+ November 8, 2010
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Tickling your lover's gooch with a long feather, specifically an ostrich feather, but other feathers will do.
Sue loves it when Tom crests her; she likes the peacock feather the most.

A-cresting I will go, a-cresting I will go, hi ho the dairy-o a-cresting I will go.
by reallygrey February 18, 2008
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the act of people across america using crest toothpaste to brush their teeth in public places
"dude, did you see amanda cresting in the gas station??"
by jkushington December 5, 2012
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