Top definition
Comes from the word "jem"
Meaning something that was done very well using both style and edge

"Bro that was the absolute jema"
by cunninghambaby August 23, 2008
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2
To screw up successful ongoings for no reason other than to cause a buzz.
"My God, Joel Schumacher totally pulled a Jemas with 'Batman & Robin'!"
by Sag November 10, 2003
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