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1.
When something exciting happens.
When something disapointing happens.
Alot like holy cow but clearly better.
Holy wack that lamb has a lot of wool!
Holy wack why did you have to go there..
Holy wack why does your grandma have no teath?!
by Tellie May 10, 2006

Words related to holy wack

holy holy cow holy jeese holy macaroni wack
 
2.
=Oh no! (cry of disappointment, disgust or frustration)
Eminem's BUSINESS: "Holy wack, unlyrical lyrics Andre, you're fuckin' right".
by Fangsta March 17, 2003