Log Jam 

When a dude with a huge cock tries to fuck a virgin pussy, his cock (log) gets stuck

MOCO doesn't want a log jam so he avoids fucking virgins.

Log Jam by MOCO & P-Phat February 11, 2009

log jam 

When your trying to poop and it gets stuck in the hole. (Constipation)

"I tried to let 'er go but i had a log jam"

log jam by jordan b November 19, 2003

Log Jam 

the act of having a penis in both the ass and vagina and having the both cocks being stuck inside at once or one cock forcing the other or denying entry

I couldn't get my cock in her ass because of the log jam in her vag

Log Jam by kwigibo August 1, 2007

Log Jam 

When a man sits on a toilet to shit with high water and it "jams" under his balls in the water.

I sat on the hotel toilet to sit and the water was so high I had a log jam.

Log Jam by Chevygal November 25, 2015

log jam 

Any social setting (bar, party, etc.) where the majority attending are male. The few girls in attendance have two or more males vying for attention – a log jam!

I went to ladies night at the bar last night. There were only three girls - a log jam.

log jam by MROZ December 28, 2005

Log Jam 

When two males are in the Eifel tower position and thrust at each other simultaneously, Effectively causing a log jam

Me and The Gooch were Eifeling this bitch when we both hammered at the same time causing quite the log jam.

Log Jam by Keltic thundar March 14, 2010

log jam 

The act of sticking one's thumb between somebody else's butt cheeks and announcing "Log Jam!". This is not a sexual act, it is performed externally while the recipient is wearing pants. Best performed in front of other people.

Nick, standing behind Frank waiting in line at the cafeteria, jams his thumb up between Frank's butt cheeks and yells "Log jam!"

log jam by legsalad January 17, 2011