draw rein

draw in the reins

1. Literally, to pull in the reins of a bridled animal, especially a horse, to slow it down or bring it to a stop. Mary drew in the reins as she approached town, bringing her horse to a saunter.
2. By extension, to slow something down or bring it to a stop. During the economic boom, our company was making as many risky investments as we could find. Luckily, our CEO had the sense to draw in the reins on such recklessness before the economy crashed.
See also: draw, reins
Farlex Dictionary of Idioms.

draw rein

To stop a horse, for example, by pulling on the reins.
See also: draw, rein
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • draw in the reins
  • reins
  • gallop through
  • gallop through (something)
  • galloping
  • break into a gallop
  • hand over the reins
  • take over the reins
  • take the rein(s)
  • give someone free rein