Origin of wack
"wack." YourDictionary, n.d. Web. 14 September 2018. <http://www.yourdictionary.com/wack>.
wack. (n.d.). Retrieved September 14th, 2018, from http://www.yourdictionary.com/wack
(comparative wacker, superlative wackest)
Back-formation from wacky.
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