The substance that forms in the area where your nutsack and thigh meet after you haven't showered in a while.
My nut jam smelled like buttered toast yesterday.
by DJ Jew-C August 9, 2007
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A pinkish/reddish jelly-like substance that forms when a man's semen mixes with the blood from a woman's menstrual cycle after ejaculation has occurred. This substance can sometimes be seen on the stomach region after "out-of-vagina" ejaculation.

Please note: Nut jam may not form when a condom is used.
"Me and Lisa hooked up while she was on her period and I made some nut jam when I came on her stomach."
by KanYe November 2, 2008
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A Nut Jam is a man who is full of himself and is constantly talking about discusting things.
Hey Mary, "That dude is a Nut Jam!"
by kamm lovees youuu October 25, 2011
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A nut sack jam is an uneducated, dirty semi truck driver that has no clue how to maneuver their truck in a parking lot.

An idiot truck driver pulls into a truck stop or parking lot and it takes them an hour to get to semi backed in. These truck driver typically have unnecessary hood mirror.
That idiot just got himself into a nut sack jam.
by Christina1985 December 10, 2017
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