Daffy

Adjective

 * 1) a little crazy
 * 2) * 1899, Willa Cather, The Westbound Train
 * Now I'm hungry as a Rocky Mountain lion so come, let's go and get this poor, daffy, tealess widow and wine and dine with her and make it all up.

Synonyms

 * nutty as a fruitcake

Thesaurus
apish, asinine, balmy, bananas, barmy, bats, batty, beany, befooled, beguiled, besotted, bonkers, brainless, buffoonish, buggy, bughouse, bugs, cockeyed, crackers, crazy, credulous, cuckoo, daft, dazed, demented, deranged, dippy, dizzy, doting, dotty, dumb, fatuitous, fatuous, flaky, flipped, fond, fool, foolheaded, foolish, freaked-out, fruitcakey, fruity, fuddled, futile, gaga, goofy, gulled, haywire, idiotic, imbecile, inane, inept, infatuated, insane, just plain nuts, kooky, loco, loony, loopy, lunatic, mad, maniac, maudlin, moronic, nuts, nutty, off the hinges, off the track, off the wall, potty, round the bend, sappy, screwball, screwballs, screwy, senseless, sentimental, silly, slaphappy, stupid, thoughtless, wacky, wet, witless