These are all ebonics though
Dub: something being a flop or like not worth it, or even stupid or whack. (best way I could explain it lol)
Ex:
That long ass line was a dub. I wasn't going to wait on it.
That test she gaves us was a dub. I failed it with a 10.
Shot: in some cases being ugly or being exhausted.
Ex:
Yo, that bitch was shot, her hair looks ****ed up.
My legs are shot. I'm ohdee tired.