noun
the act of interrupting sexual intercourse before ejaculation
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Coitus interruptus is a method of contraception that involves withdrawing the penis from the vagina before ejaculation.
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Some couples use coitus interruptus as a form of birth control.
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Pulling out is a slang term for coitus interruptus.
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In a figurative sense, coitus interruptus can refer to any abrupt interruption or cessation of activity.