Top Definition
A holiday sex move, when dirty hot sex has been going on for a long period of time, raising the body temperature of the man in turn raising his semen temperature. He nuts on the womans chest, thus a roasting chestnut.
Tim: Hey Dale what are you doing christmas day?

Dale: Visiting my in-laws at 5 which will lead to a roasting chestnut with my wife in her parents bed.

Tim: :/
by brandon2k9 December 02, 2009

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.