A lazy black man, who sits on his porch drinking and trading his food stamps for crack.

Racist term from the old South. While entertaining in the summer, after dinner the good White folk would retreat to their respective spaces (women to the parlour or drawing room, men to the porch) for after dinner drinks. The men, desiring to prop their feet up while relaxing, would have the small slave children get on their hands and knees so that the master and his guests could use them as footstools. Hence the term "porch monkey".

A gangster wannabe that talks about being gangster when all he does is sit on steps and talk about being gangster to other wannabe gangsters

A person willing to do basically any household chore, yard work, errands etc. for their local drug dealers in exchange for drugs.

another type of racial slur towards black people.