Green’s Dictionary of Slang

jiggering adj.

a mild pej.

1876		J. Greenwood Low-Life Deeps 216: Bust and beggar the jiggerin’ thing, why the ’ell don’t it fall into the hole?
1928		(con. 1918) L. Nason Top Kick 85: You poor jiggering jughead!
1938		X. Herbert Capricornia (1939) 281: Dirty jiggerin’ son of a halfbreed blunny —.