Top Definition
Composting is a sexual act, originated by the Mormons, where a man places his penis inside a woman’s rectum and remains still without thrusting. Similar to “Soaking”, composting is a sexual outlet deemed acceptable for unmarried Mormon couples. Whilst composting, it is a sin for either partner to initiate frictional stimulation or orgasm.

Recently, composting has been adopted by certain homosexual subcultures and loose women.
1. Jebediah and Hannah enjoyed spending romantic time composting together prior to their wedding.

2. Composting is first base for Sarey. She has composted half of Salt Lake City.
by Jebediah T July 20, 2011

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