Green’s Dictionary of Slang

(Scot. Und.) a petty thief; also as v.; thus snibbed adj., stolen.

1821		D. Haggart Autobiog. 13: Young M’Guire was a well known snib.
1857		‘Ducange Anglicus’ Vulgar Tongue 44: Fence my snibbed lays Sell my stolen goods [...] The only snibs in the gaff The only prigs in the fair.
1942		(con. 1890s) S. O’Casey Pictures in the Hallway 134: It’s little leisure he’ll have to jingle his coins an’ count his gains snibbed from an’ oul’ innocent creature.