1. A person who behaves like a douchebag.

2. Name for a person who does something that is considered taboo in social groups.
1. Stop being such a chestnut and come play with us.

2. Liam, stop sending us selfies of you without a shirt, you are such a chestnut.
by 1hok August 03, 2020
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when a man ejaculates onto the breasts of a female sex partner
When he knew he was about to cum he pointed his dick right at her huge tits. They both knew a chestnut was imminent.
by Marchel March 19, 2013
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When a guy puts his balls in between a girls chest, while she massages it. Hence the name CHEST...NUT
Duuuudddee her tits are so big, she's gunna give me a chestnut
by glopmon123 May 30, 2011
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a boobjob, where a man's nuts meets a woman's chest
Dude, katie and andy just chestnutted last night.
by AznUrban March 26, 2010
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The most legendary man in the history of the world.

BM: Man, did you see Chestnut down that extra large steeped tea?

BB: Yeah, Chestnut is such a legend
by Chestor_Is_A_Legend May 04, 2008
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