Definition of "bangtail" [bang•tail]

• A racehorse. (noun)
• A detachable extension to the back of an envelope, having a perforated edge and special marketing information or an order form on it. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It seems that 'Fireman' O'Leary was most useful in helping the fillies home at Washington Park by assaulting them in the region of the bangtail with small bollops of pure incandescence."
• "(surprisingly, ` claim 'is the verb; quit = ` quits' or ` even '), bobtail and bangtail (bob and bang = ` crop,' and these are just bobbed examples of humdrum past participle formations), and lockjaw (not conclusively eliminated, but ` locked jaw 'is given as an alternative form)."