JAM = jelly as a motherfucker
dangus: RIP Zyzz - Son of Zeus, Brother of Hercules, Father of Aesthetics
skinny faggot: fuck Zyzz
dangus: lolol u mad brah? u must be JAM
skinny faggot: fuck Zyzz
dangus: lolol u mad brah? u must be JAM
by dangus vaikstyne October 7, 2011

Park Jimin.
Used to describe a very no fun person. Kim Namjoon created this phrase.
Commonly used by ARMY.
Used to describe a very no fun person. Kim Namjoon created this phrase.
Commonly used by ARMY.
by kimnamjoon July 2, 2018

by Ad4690 February 23, 2017

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 13, 2005

by LOL ;) May 19, 2008
