wack·y (wăkē) also whack·y (wăkē, hwăkē)
adj. wack·i·er, wack·i·est also whack·i·er or whack·i·est
1. Eccentric or irrational: a wacky person.
2. Crazy; silly: a wacky outfit.
[Variant of whacky, probably from the phrase out of whack; see WHACK.]
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