Top Definition
The type of guy most likely to be seen clubbing at a meatmarket. The name is derived from the type of music generally played at such establishments.
Guy 1: The Nutty Irishman? I don't want to go there just to be surrounded by all the oonce-oonces!
Guy 2: WTF is an oonce-oonce?
Guy 1: Y'know... (flips collar up, sneers) oonce-oonce-oonce-oonce-oonce...
by Fantastic_Dan March 17, 2005
2 Words related to oonce-oonce

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