When on a hot day your nuts get a thick white to off white paste that your underwear stick to. In some cases it may be watery and will soak thru the pants.
Hey bob you got any napkins I got a mean case of gravy nuts. And its stinking
by Mr rumplenuts April 20, 2017
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Heavier than usual ejaculation
Yo, I busted huge gravy nut on her ass.

Man, my girl is pregnant because I busted a big ole gravy nut in that pussy.
by tailWinds July 2, 2011
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A whitish gelatinous DNA containing substance forcefully ejected from a man's penis during climax of the sexual act.
Jankins: I sprayed nut gravy all over her face!
Poombah James: You're the Schizz-rizzle-ba-dizzles, Matey
Jankins: And then I gave her a pearl necklace!
Poombah James: You should be a like a professional cake decorator, Baller!!
by Stoogin-Poogins November 3, 2005
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