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To be jealous of another persons possesion.
When she saw my shoes, I knew she was so jelling!
by Anita Showwer April 03, 2007
The act of being jealous.
dude you made out with her? I'm so jelling right now...
by Canadianfrostbite March 27, 2010
To be chronically sitting or lying around uselessly. Too tired to do anything.
Johnny has been jelling all day
by storksy November 12, 2010