adjective
- most strange, unusual, or eccentric in a silly or amusing way
Usage: informal; superlative form of wacky
Examples
- That was the whackiest movie I’ve ever seen.
- She always comes up with the whackiest ideas for our school projects.
- The whackiest costume at the party won first prize.
- His whackiest invention was a hat that played music.
- The comedian told the whackiest jokes during his performance.
- That’s the whackiest excuse I’ve heard all week.