bite the big one

When someone attempts to bite another person's style, sound, or aesthetic and executes it badly — the original is recognisable, the copy is worse, and the whole thing makes the biter look worse than if they'd just stayed original. A bite fail is uniquely embarrassing because it requires both the audacity to copy and the incompetence to do it poorly. The internet always finds the receipts, and a side-by-side bite fail comparison is a humiliation that tends to circulate for a while.

(slang) To die.

(idiomatic, slang, UK) To behave in an arrogant or self-important manner; to boast.