Green’s Dictionary of Slang

a rake, a young man about town.

1610		Beaumont & Fletcher Scornful Lady IV ii: Get thee another nose; that will be pull’d Off by the angry boys.
1610		Jonson Alchemist III iv: ’Slight, here are more! / Abel, and I think, the angry boy, the heir.
1753		Caledonian Mercury 15 May 1/1: When I bring myself to do Things not so much in a Hurry, I shall fence as well as any angry boy in England.
1761		Dublin Courier 29 Apr. 2: The Alchymist. Altered from ben Jonson. Sir Epicure Mamnion mr Sparks [...] Angry Boy, mr Ellard.
1773		Caledonian Mercury 1 Nov. 1/1: What! Kill the angry boy!