sick the head (adjective) bananas: insane
Sinonime: bonkers*, brainsick, crackers,
crazy, crazy as a loon, cuckoo,
daft,
demented,
deranged,
distraught,
disturbed, dotty, kooky, loco,
lunatic,
mad, mad as a hatter,
maniac,
maniacal, mentally ill, moonstruck, not all there, nuts, nutty as a fruitcake, off one's rocker, out of one's mind, out to lunch,
psycho,
sick, sick in the head, stark raving mad,
touched*,
unbalanced, unhinged, unsound,
wacky