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flunk out

Idioms  

  1. Expel or be expelled from a school because one's work does not meet the required standard. For example, He flunked out of Harvard after just one year . [ Slang ; early 1800s]

  2. Fail at anything, as in The camera ran out of film so we flunked out as photographers . [ Slang ; late 1800s]

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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