Green’s Dictionary of Slang

homo n.¹

a man.

1821		Egan Life in London (1869) 221: Making the room ring again with noisy peals of laughter at the distress of the unfortunate homo.
1833		M. Scott Tom Cringle’s Log (1862) 60: Captain K—, a round plump little homo.
1843		W.T. Moncrieff Scamps of London II i: I’m a ruined homo, a muff, a flat, a sam, a regular ass.
1846		Swell’s Night Guide 57: schikster: Did you fake the slum, cully, last darky? gonniff: Faked it rumbo: copped the lob, darked the hommo of the cassey, and scarpered with the swag.
1864, 1867, 1870		Hotten Sl. Dict.
1901		‘Rolf Boldrewood’ In Bad Company 420: Can any imported ‘homo’ even now pilot twenty bullocks [...] along the roads the teamster safely travels?
1920		Ade Hand-made Fables 216: He had continued to breathe for many Decades and thereby had accomplished the main Purpose of every Homo born into this Vale of Speculation.
1930		J.T. Farrell ‘The Scarecrow’ in Short Stories (1937) 31: A miserable homo sap like myself is not worthy to kiss the hem of your garment.