A Jealous Person, so jealous they have their own name.

Reasons to use: If someone is being overly jealous you have the right to let them know that they are being a jelly head.
Mitch: Hey I just won the power ball!!!

Johnny: Playing the lottery is stupid, I work for everything I do not collect hand outs

Mitch: You're such a Jelly Head haha yeaa im in it to win it.
by Mitch Brown August 22, 2011
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A person dedicated to the music and vibes of the band Lemon Jelly. Usually found posting on jelly forums, grooving to jelly music or just smiling about life in general. A very fine group of individuals.
"My really cool friend is a total Jelly Head."
by Nervous Tension January 6, 2006
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