The miscalculation of distance and/or location of the vaginal opening during rigorous sex which results in the penis slamming against the outer labia or groin.
He drove in deep but missed his mark, resulting in the mother of all Clam-Jams that left him writhing in pain.
by Gottaring January 29, 2012

A song, that when played, gives the listener a boner.
The singer can only be of the sex that attracts you.
A female can have a boner jam.
The singer can only be of the sex that attracts you.
A female can have a boner jam.
by El Presedente June 22, 2009

White viscous fluid ejected from a mans penis during ejaculation. Ejaculate. Sperm.
see also: "baby gravy", "man paste", "man custard", "cock paste", "cum", "jizz", "root juice", "seed", "semen", "sperm", "spunk", or "splooge
see also: "baby gravy", "man paste", "man custard", "cock paste", "cum", "jizz", "root juice", "seed", "semen", "sperm", "spunk", or "splooge
Eric is such a whore, he cannot get enough man jam in his ass.
or
I drilled Chris long and hard and finally filled her pussy with my man jam.
or
I drilled Chris long and hard and finally filled her pussy with my man jam.
by Monkey Boy February 19, 2004

I thought we had plans Thursday, why did you jam out on me? I was following to closly to the car infront of me when her breaks jammed out; I couldn't stop in time. The drill press at the factory has jammed out again; coffee break time.
by Grjohnstone October 9, 2006

by Slug Diesel July 23, 2004

by George, they give me the jim-jams and the fan-tods and caked up what brains I had, and turned them solid ...
by MaxwellB24 May 23, 2016

Noun: Where a male ejaculates and then tries to urinate shortly afterwards causing a blockage in his urethra. This often results in pain and inflammation of the penis head as the combination of spaff and urine can not be released.
"I had a great sex with my girlfriend last night but when I went to the toilet afterwards I ran into a major spaffic jam. I was stuck for 20 minutes!"
"I better pee before I masturbate, I don't want another spaffic jam"
"I better pee before I masturbate, I don't want another spaffic jam"
by spaffmaster August 16, 2011
