1. unusual or strange in an amusing or entertaining way
Usage: informal; variant spelling of ‘wacky’

Examples

• The comedian’s whacky sense of humor made everyone laugh.
• She wore a whacky hat with feathers and bells.
• The movie had a whacky plot about talking vegetables.
• His whacky ideas often turned out to be brilliant.
• The children loved the whacky characters in the cartoon.
• That’s a pretty whacky way to solve the problem.