A busta is somebody who ruins things, be it robberies at pizza places or attempting to follow a train.

The person at the top left of the screen

Poser--wanna be--one who fronts.

very stupid, the definition of imbecil. But everyone starts at the bottom aint I right?

a person or group of people who are all talk and is usually avoiding some confrontations and situations AKA a pussy or chicken

a person who cant hold his own , always gettin punkt out.

Not cool; someone with the ability to work but who refuses work; someone who depends on others to get by