a song that a person is particularly fond of, sometimes to the point of being their personal anthem or theme song. derived from the expression "jamming out".
"say mang, turn the radio up, this is my jam!"
by natasha elizabeth December 11, 2005
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Bascially mening "no-fun" (no sense of humor). Jam (or Jaem) it's short for the korean word "jaemisso" which means fun, combined with the english "no".

Popularised internationally by BTS in a video clip where RM tells Jimin he has "no-jaems" - Where it sounds like the english word "jams".
RM - Jimin you got no-jams
by Pjamz February 3, 2019
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any get together for artist not specifically confined to musical session.
Jamming on some painting subjects this weekend with my coach will be a good idea.
by Saigon De Manila March 20, 2016
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To jam is play jazz on a musical instrument such as the saxophone; or to rock out to your favourite music artist by yourself or with others.
"So are we jamming on thursday?"
"I'm jamming, what are you up to?"
by kate February 24, 2005
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A jam is usually another way of saying "party" primarily used by teenagers.
Yoooo bro are you trying to reach a jam tonight at my base?

Ahh say less as long as theres sweet girls

Dont stress bro I gotchu
by BASED GOD TENZ March 19, 2019
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people use the word jam jam as a shorter way to say jamica it can be used we askin wer sum 1 is from.
oi blud .. wer u from
jam jam init
im goin jam jam in da suma its gona b dope
by shakz April 3, 2006
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