Onanism

Onanism - couple semi-dressed kissing passionatelyOnanism is an historic term for coitus interruptus, or withdrawal of the penis from the vagina during sex just before the ejaculation of semen.

It is named after Onan, who in the Bible’s Book of Genesis practised coitus interruptus and “allowed his seed to fall upon the ground”.

(Last modified: 16th Oct 2014)

Comments are closed