[cf. BANG v. 8 c.] A (horses) tail, of which the hair is allowed to grow to a considerable length and then cut horizontally across so as to form a flat even tassel-like end; hence Bang-tailed ppl. a.
1870. Daily News, 19 July, 6/2. Go-ahead, a good mare with a bang tail, which she wore well.
1861. Hughes, Tom Brown at Oxf., vi. (D.). These bang-tailed little sinners any good? said Drysdale, throwing some cock-a-bondies across the table.