scurvy dog
Term used by sea pirates for insubordinates.
Avast, ye scurvy dogs!
Scurvy Dog
Either a nickname or an insult for a friend/enemy. Sounds non-serious, so maybe don't use it a serious moment.
John: "Yo! What's up you scurvy dogs?"
or
Skeletor: "MWAHAHAHAAHA! YOU SCURVY DOGS DON'T STAND A CHANCE AGAINST ME!"
or
Skeletor: "MWAHAHAHAAHA! YOU SCURVY DOGS DON'T STAND A CHANCE AGAINST ME!"