expression
worthless person; someone who wouldn't be missed if they died
Vulgar insult implying the person is so worthless that even death wouldn't be a loss. Used in rough, contemptuous speech.
See also: くたばる
あんなくたばり損ないの言うことなんか気にするな。
Don't pay attention to what a worthless piece of trash like that says.
彼はくたばり損ない呼ばわりされて怒った。
He got angry when he was called a worthless good-for-nothing.