hubble de shuff, adv. — Green’s Dictionary of Slang

hubble de shuff adv.

[milit. jargon fire hubble de shuff, fire quickly and irregularly; ? the orig. root of both is 16C northern dial. hubbleshow, a hubbub, a disturbance]

confusedly, chaotically.

1788, 1796		Grose Classical Dict. of the Vulgar Tongue (2nd, 3rd edn) n.p.: Hubble de Shuff. Confusedly. To fire hubble de shuff, to fire quick and irregularly. Old military term.
1811		Lex. Balatronicum.