One definition comes from the Roller Derby when the fastest skater passes those on the other team. When the skater is going really fast he is on a JAM. A slang useage example would be "let's jam".
by Roland November 01, 2005
by LOL ;) May 19, 2008
A very, very, interesting person. not in a good way. His Favorite food is jams, and he loves jamming to music, although he can't dance.
by Jams3093 May 16, 2018
by Maddie March 15, 2005
by anon February 17, 2005
to improvise in a group of two or more people with musical instruments, coming up with wild and funky riffs and glorious tunezoids
by bitchincamaro June 18, 2005