든지 말다

whether they do or not, whatever

X든지 말든지 is 'do it or don't' — the speaker has stopped caring which. These lines are someone else's life being their own business, not minding any more whether the food still has hairs on it, telling someone to take it or leave it as they please. It is blunt and casual, a spoken shrug, and can sound cold when aimed at a person.

Register: blunt, dismissive