drop off

drop off idiom
  1. Fall asleep, as in When I looked at Grandma, she had dropped off. [Early 1800s]
  2. Decrease; also, become less frequent. For example, Sales have dropped off markedly, or Over the year her visits dropped off. [Early 1800s]
  3. Deliver, unload, as in Bill dropped off the package at the office.
  4. Die, as in He is so ill he could drop off any time. [Early 1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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