1 definition by Recé

Jym is your composure, your demeanour or your patience. for example if your the guy that gets overly excited/drunk and shows off in front of girls at a party thats a lack of Jym because you didn't play it cool.

If you loose your temper unnecessarily without valid reason thats a lack of Jym.
'that guy over there is way too drunk he's embarrassing himself in front of the girl he likes wheres his Jym?'
by Recé July 28, 2014
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