someone that is worse then a d-bag.. so bad, that they have to be called a d-box.
Have you see Danny the d-bag?
Yeah, dude, hes not even worth being called a d-bag. hes a d-box!!
A gang that anyone can be in if he/she isn't hardcore enough to actually join a real gang. There is no initiation into it.
Person 1: What gang are you in?
Person 2: Im in MS-13.
Person 1: Damn thats hardcore, but not as hardcore as me and my d-box homies.