Top Definition
1. The king God in Jelvinism, a religion where life was started in Czechoslovakia, with lot's of ice at absolute zero for temperature (0° Kelvin).

2. a mix between any name the begins with the letter J, and the Kelvin temperature scale
I got a Jelvin as a pet. He went to the supermarket. He bought a neopet, which he will regret!
by Leviathan Hajj Don Kiln October 22, 2010
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