absurd balmy bananas barmy bats batty beany bonkers buggy bughouse bugs crackers cuckoo curious daffy dippy dotty eccentric flaky flipped freaked out freaked-out freaky fruitcakey fruity funny gaga goofy haywire just plain nuts kooky loony loopy nuts nutty odd oddball off off the hinges off the track out outlandish passing strange peculiar potty quaint queer round the bend screwball screwballs screwy singular slaphappy strange unearthly wacky weird wondrous strange