on the tip of one's tongue
Ready to utter something but unable to remember it at the moment, as in I met him last year and his name is on the tip of my tongue—it'll come to me in a minute. [Early 1700]
Words Nearby on the tip of one's tongue
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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