mark time

mark time idiom
Wait idly for something to occur, as in We were just marking time until we received our instructions. This idiom alludes to the literal meaning of marching in place to the time, or beat, of music. [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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