Top Definition
The sound or word everyone uses at least twice in their life, usually multiple times. This word usually escapes one's lips when strenuous activity is involved, sudden pain is acquired, or one has the wind knocked out of them.
1. Tim: Hey Bob!
Bob: Hey Tim!
(Tim punches Bob)
Bob: Hiyunk! *coughs Cough Cough*

2. Sally(stubs toe on door): Hiyunk!
by Jizzle Rizzle fo Shizzle October 05, 2007
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