in. to experience an orgasm. (There is no other single word for this meaning. Usually objectionable.) : God, I thought she'd never cum.
n. semen. (Usually objectionable.) : Do you think cum is alive?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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American Heritage
Idioms & Phrases
come under
Fit into a category or classification, as in This document comes under the heading "classified."[Mid-1600s]
Be the responsibility or province of, as in My department comes under your jurisdiction. [Early 1700s]
