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 3, 2009
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Titty-fuck. When a man puts his penis between a woman's breasts to achieve orgasm.
The girl was on her period so she sucked my dick and let me roast chestnuts.
by Lilcheeks November 19, 2012
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when you put your balls into someones mouth and fart
Dude, I just gave her roasted chestnuts!
by MsEmaMac September 18, 2009
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When you nut on a girl's chest in front of a fire. Instead of cleaning it up you just leave it on her to be slowly cooked onto the skin.
"Man last night I gave her chestnuts roasting on an open fire...it was so romantic"
by KaigedStupidity April 15, 2021
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A classic holiday sex move, one person fills their mouth with the hot sauce of their choice. The male partner then proceeds to tea bag their partner's hot sauce laden mouth until his nuts are ablaze. Said partner then rubs his roasting nuts on their chest until climax henceforth screaming "Happy Holidays ya filthy animal."
Dude last night I pulled a roasting chestnut on your mom underneath the mistletoe. That shit was on fire!
by LooseHawgs17 November 19, 2015
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