DIPPY

Albanian

i marrë (Batty, crack-brained, crazy, Daffy, delirious, demented, deranged, insane, mad, madman, phrenetic, wildcat, zany), i çmendur (anile, bedlamite, berserk, crack-brained, cracked, cracky, crazed, crazy, daft, demented, deranged, frantic, insane, loony, lunatic, mad, madman, muddy, non compos, not all there, phrenetic, underwit, wild). (various references)

Bulgarian 

смахнат (bughouse, crack-brained, cracked, cracky, kinky, mental, nutty, off one's rocker, potty, queer, soft, touched, up the pole, wacky, zany). (various references)

Czech

namoèený (sodden). (various references)

French

farfelu. (various references)

German

verdreht (misrepresents, sophisticates, wryly). (various references)

Hungarian

bolond (daft, Batty, bonkers, crazy, foolish, lunatic, nutter), ütődött (loopy, numb-skull, pixilated, sappy). (various references)

Italian

storto (crooked, skew). (various references)

Pig Latin

ippyday.(various references)

Portuguese

insensato (brainless, daffy, foolish, hard-hearted, insensate, unwise), amalucado (cracked, nutty, pixilated, touched). (various references)

Russian 

рехнувшийся (possessed). (various references)

Serbo-Croatian

budalast (addle-brained, addle-pate, cock eyed, cockeye, daffy, dopey, dopy, foolish, half-witted, idleheaded, infatuated, nitwitted). (various references)

Swedish

knasig (scatty), knäpp (click, flick). (various references)

Turkish

deli (Batty, bedlamite, bonkers, crackers, cracky, crazy, daft, delirious, dement, demented, demon, demoniac, demoniacal, distracted, distraught, gaga, insane, loco, loony, lunatic, mad, mad about, madman, madwoman, meshuggah, not all there, nutcase, nuts, nutty, off one's onion, out of one's mind, out of one's senses, phrenetic, possessed, potty, touched), manyak (maniac, maniacal, manic, wacky). (various references)

Vietnamese 

hâm hâm (moonstruck, touched), gan (audacious, pluck). (various references)