slip one's mind

slip one's mind idiom
Be overlooked or forgotten, as in I meant to pick up the wine but it slipped my mind. This idiom was first recorded about 1340.

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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