adj. phr. slang; also banged-up. [? as if bang or close up to a line. Cf. slap-up.] Quite up to the mark, stylish, in the pink of fashion.
1812. H. & J. Smith, Rej. Addr. (1833), 163. Dance a bang-up theatrical cotillion.
1821. Combe (Dr. Syntax), Wife, v. (D.). Thus banged-up, sweetend, and clean shavd.
1843. Lever, J. Hinton, vii. 43. His spotted neckcloth knotted in bang-up mode.