long in the tooth

Getting on in years, old, as in Aunt Aggie's a little long in the tooth to be helping us move. This expression alludes to a horse's gums receding with age and making the teeth appear longer. [Mid-1800s]

Words Nearby long in the tooth

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

How to use long in the tooth in a sentence

When a TV series gets long-in-the-tooth, a little shake up can be just what it needs to survive.
‘Community’ Review: ‘Repilot’ Is Both an Epic Failure and a Major Success | Kevin Fallon | January 3, 2014 | THE DAILY BEAST

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