Green’s Dictionary of Slang

a ruffian, scoundrel, villain.

1593		G. Harvey Pierce’s Supererogation 146: The daggletaild rampalion bustleth from the frank-tenement of the dunghill.
c.1597		Shakespeare Henry IV Pt 2 II i: Away, you scullion! You rampallian! You fustilarian! I’ll tickle your catastrophe.
1611		J. Cook Greenes Tu Quoque Scene iv: ’Tis not your sawsege face, thicke clowted creame rampallion at home, that snuffles in the nose like a decayed Bagge-pipe.
1613		Beaumont & Fletcher Honest Man’s Fortune II ii: Out upon them, rampallions! I’ll keep myself safe enough out of their fingers.
1639		R. Davenport New Tricke to Cheat the Divell I ii: And bold Rampallion like, swear and drinke drunke .
1822		(con. early 17C) W. Scott Fortunes of Nigel III 51: I was almost strangled with my own band by twa rampallians who wanted yestreen [...] to harle me into a change-house.