Top Definition
A person who resembles a rabbit in appearance (Big ears buck teeth) and/or personality (hyper and jumpy). In short rabbit + Person = Ridian.
Dude, stop eating all the carrots! Dont be such a Ridian.

Person 1: Hey have you met Paige?

Person 2:Who?

Person 1: That chick with the buck teeth and big ears.

Person 2:OH! You mean the ridian.

Person 2:Yeah.
by Mike ddawson November 09, 2007

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