bangtail noun 4verb 1forms 3 noun4 •The tail of a horse or cow, allowed to grow out and then trimmed horizontally so as to form a tassel; a horse or cow having such a tail."And did you see a dark chestnut horse; bang tail; star and snip; white hind feet; saddle and bridle on?" I asked. — 1903 •(US) A racehorse.“Eddie!” whinnied Daley, the distraught worshipper of the bang-tails. “Eddie! Phar Lap is dead!” — 1934 •An envelope with a perforated flap on which promotional material is printed; the flap on such an envelope. •(slang) A prostitute. verb1 •To shear off the hair horizontally at the end of a cow or horse's tail. formsbangtailed · bangtailing · bangtails