rattler

noun7

1. •
   Anything that rattles.
2. •
   (US, informal) A rattlesnake.

   • You watch your step walking out there on the mesa, because in warmer season, the rattlers are up and about, and it's their turf. — 1989
3. •
   A freight train or, (chiefly UK), a passenger train.

   • I'll lay you odds that this old rattler don't get into Shanghai on time. — 1932
4. •
   (informal) Any decrepit or noisy vehicle, such as a cart, carriage or train.
5. •
   (informal, old-fashioned) A loud, inconsiderate talker.
6. •
   (informal, old-fashioned) A stunning blow.

   • […] laid handsomely out with such a rattler on the nose as nobody could have expected from a casky little man of five-feet-nothing. — 1897
7. •
   (informal, old-fashioned) An impudent lie; a whopper.