wack

adjective

1. Egregious.

2. (hip-hop slang) Bad (not good), inauthentic, of an inferior quality, contemptible, lacking integrity, inauthentic, lame, or strange.

- Every record they ever made was straight-up wack.

3. (slang) Crazy, mad, insane.

noun

1. An eccentric; an oddball; a weirdo.