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

5 Words Related to holy wack

=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

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