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 (flŭngk) Informal
v. flunked, flunk·ing, flunks
To fail, especially in a course or an examination.
a. To fail (an examination or course).
b. To give a failing grade to (a student).
2. To fail (a drug test, as for a performance enhancing substance).
1. A failure.
2. A failing grade.
Phrasal Verb:
flunk out
To expel or be expelled from a school or course because of work that does not meet required standards.

[Origin unknown.]

flunk′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Education) a person who flunks an examination
2. (Education) an examiner who causes an exam candidate to flunk
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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In literature, addition of carbonate (Bottje and Harrison, 1985), sodium bicarbonate (Yasoob and Tauqir, 2017), glucose (Zhou et al., 1998), calcium lactate (Damron and Flunker, 1995), sodium hypochlorite (Damron and Flunker, 1993) and acetyl salicylic acid (Hassan et al., 2003), saline (Balnave, 1993), were reported.
'That is why I got angry at you because even an ordinary flunker of law knows that.'
As Lester, Tomkovick, Wells, Flunker, and Kickul (2005) note, if students are given the chance to work directly with service users, they will have personal contact with this population throughout the project.
(7.) Miller BE, Guzzetta NA, Tosone SR, Miller JL, Flunker AR, Silvey EM, et al.
(8.) Flunker G, Peters A, Wiersbitzky S, Modrow S, Seidel W.
"Pity that cousin, so desperate to pass a drug test that he relies on the help of Onterrio Smith, serial drug-test flunker," wrote Scott Ostler in the San Francisco Chronicle.
FRENCH flunker Jean van de Velde is still ruing his blunder at Carnoustie almost five years after the most dramatic finish in Open golf history.
Thomas Bjorn overcame a three-hole deficit at the halfway stage to triumph 4&3 against his fellow flunker Len Mattiace.