Top Definition
( Rye-on-say)- is a name given to people who have and display all of the following characteristics.

Compulsive behavior
addicted to one or multiple things
narcissitc attitude
never wrong
never says sorry
lives life to the fullest extent
why do you have to act like such a ryonce.

you call me ryonce like that is a bad thing.
by Ryonce the original February 10, 2010
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