nabberslang.|ˈnæbə(r)| [f. nab v.1 + -er1.] One who ‘nabs’; hence (a) a bailiff or constable; (b) a thief. 1810Splendid Follies III. 118 Oxford, where..he might elude the pursuit of nabbers till daddy's heart relented.1880Jamieson's Sc.Dict., Nabber, a pilferer, a thief.