wacky definition by Webster's New World
wacky definition by American Heritage Dictionary
also whack·yadjective wack·i·er also whack·i·er, wack·i·est also whack·i·est Slang
- Eccentric or irrational: a wacky person.
- Crazy; silly: a wacky outfit.
Origin: Variant of whacky, probably from the phrase out of whack; see whack.
- wackˈi·ly adverb
- wackˈi·ness noun