Greaser

A type of person who greases their hair back in style of the 1950s greasers listens to RockaBilly kinds of music and are the heppest cats you know

Guy1:hey you know that greaser?
Guy2:you mean Johnny.
Guy1:yeah I'm gonna beat his ass!
2 hours later
Guy2:what happened too you?
Guy1:he beat my ass 6 ways til Sunday.
Johnny:dont never show yo face around here anymore ya dig?

Blackjacks

South Carolina gang consisting of some greasers and some regular people mostly shoplift and rob people

Guy 1:what gang you apart of
Guy 2:the blackjacks what's it to you