subs. (thieves and theatrical).A man: specifically, a master. [Fr. It. uomo.] Fr. le pilier du creux. Also OMER and HOMEE.
1864. HOTTEN, The Slang Dictionary, s.v. OMEE the OMEE of the Carseys a nark on the pitch, the master of the house will not let us perform.
1883. Echo, 25 Jan., 2, 3. From the Italian we got the thieves slang terms casa for house and OMEE for man (nomo).
1893. P. H. EMERSON, Signor Lippo, xiii. When I got back the cullies said, Well, cully, how did you get on with the OMER? Bono, about sa rounds of fine blocks.