Green’s Dictionary of Slang

a thrashing.

1833		Marryat Peter Simple (1911) 78: They called me a raw Irishman, and raw I was, sure enough, from the constant thrashings and coltings I received.
1836		Marryat Mr Midshipman Easy (1837) 82: Do as I bid you — give him a good colting — if you don’t I’ll thrash you.
1890–1904		Farmer & Henley Sl. and Its Analogues.