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When two or more men compete to see who can produce more "cream" (ejaculate.) This act is usually performed onto a willing man or woman, or between two, not necessarily homosexual men.

See also: Bukkake
Mark: Hey Greg, would you like to have a creamoff with me and the wife?

Greg: You betcha pal, I've been saving up all week!
by DoktorKoktor November 04, 2015
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