Green’s Dictionary of Slang

(UK Und.) efficiently; quickly.

1846

Swell’s Night Guide 51: The nummy pet gammoned scrapping, stalled a prop in the mug, propped in return, and floored Fuzzle, who gammoned a downer [...] and frisked him rumbo. [Ibid.] 58: She eased him of his fawney, tipped him the glue, officed her cullies, they pasted his nibs, and scarpered rumbo.