Hawcubite, n. — Green’s Dictionary of Slang

Hawcubite n.

also Hawkubite

[? SE hack about; but note Brewer, Dict. of Phrase and Fable (1894): ‘The succession of these London pests after the Restoration was...The Muns, the Tityre-Tus, the Hectors, the Scourers, the Nickers, then the Hawkubites (1711–14), and then the Mohocks – most dreaded of all. (Hawkubite is the name of an Indian tribe of savages)’]

one of a band of dissolute young men infesting the streets of London at this period; a street-bully, a ruffian.

1712		Swift Wonderful Prophecies in Works (1755) III 174: I am the porter, that was barbarously slain in Fleet street: by the Mohocks and Hawcubites was I slain.
1894		(ref. to early 18C) Brewer Dict. Phrase and Fable 588/2: Hawkubites [...] Street bullies in the reign of Queen Anne. [...] ‘From Mohock and from Hawkubite, / Good Lord deliver me.’.