Green’s Dictionary of Slang

boman n.

1. a gallant, a sweetheart.

1724

J. Harper Frisky Moll’s Song 23: A Famble, a Tattle, and two Popps, / Had my Boman when he was ta’en.

2. a thief.

1724		‘Frisky Moll’s Song’ in J. Thurmond Harlequin Sheppard 22: From Priggs that snaffle the Prancers strong, / To you of the Peter Lay, / I pray now listen a while to my song, / How my Boman he [k?]ick’d away.
a.1790		H.T. Potter New Dict. Cant (1795).
1809		G. Andrewes Dict. Sl. and Cant.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.

In compounds