A ruffian or scoundrel.

[Of unknown origin.]

In Shakespeare's Henry IV, Falstaff exclaims, "Away, you scullion!
you rampallion! You fustilarian! I'll tickle your catastrophe."
A scullion is a kitchen servant or one who does menial work. Fustilarian
is a synonym of yesterday's term fustilugs (a fat and slovenly person).

"[Justin] asked, 'Why do you say that? The rampallion admitted he was
to blame.'"
Cynthia Morgan; Court of Shadows; Ballantine Books; 1992.