Definition of Whacky

Adjective

• informal or slang terms for mentally irregular
  "it used to drive my husband balmy"
  balmy barmy bats batty bonkers buggy cracked crackers daft dotty fruity haywire kooky kookie loco loony loopy nuts nutty - round the bend - around the bend wacky
• ludicrous, foolish
  "gave me a cockamamie reason for not going"
  "wore a goofy hat"
  "a silly idea"
  "some wacky plan for selling more books"
  cockamamie cockamamy goofy sappy silly wacky zany

• Scrabble® score of the whacky (21)
• Word Chums® score of the whacky (25)
• Words With Friends® score of the whacky (20)