snite someone’s snitch, v. — Green’s Dictionary of Slang

snite someone’s snitch v.

[SE snite, to wipe + snitch n.¹ (2)]

to wipe, i.e. hit, someone’s nose.

c.1698		B.E. Dict. Canting Crew n.p.: Snite his Snitch, Wipe his Nose, or give him a good Flap on the Face.
1725		New Canting Dict. [as cit. c.1698].
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1859		Matsell Vocabulum.