expression
drop dead!; go to hell!; fuck you!
Vulgar, strong imperative telling someone to die or go away. Originates from the verb くたばる (to die, to kick the bucket). Used in heated arguments or as a rough dismissal. Dialectal association with Kantō-ben.
See also: くたばる
「くたばれ!」と彼は怒鳴った。
"Drop dead!" he shouted.
うるさい、くたばれ!
Shut up, go to hell!