flunk

Alteration of funk, or perhaps a blend of flinch +‎ funk.

flunk (third-person singular simple present flunks, present participle flunking, simple past and past participle flunked) (US)

(ambitransitive) Of a student, to fail a class; to not pass.
He flunked math, again.
(transitive) Of a teacher, to deny a student a passing grade.
Unsatisfied with Fred's progress, the teacher flunked him.
(by extension) To fail any challenge
(dated, informal) To shirk (a task or duty).
To back out through fear. (Commonly in the phrase 'flunk it', the 'it' referring to a specific task avoided; sometimes without specific reference, describing a person's attitude to life in general.)

to fail — see also fail

Azerbaijani: kəsilmək (az)
Bulgarian: пропадам (bg) (propadam)
Chinese:
Mandarin: 掛科 / 挂科 (zh) (guàkē)
Czech: propadnout (cs) pf, vyletět pf, rupnout pf
Dutch: (voor) buizen (nl), zakken (nl)
Finnish: reputtaa (fi), saada reput, pompata (fi)
French: louper (fr)
German: durchfallen (de)
Italian: bocciare (it), trombare (it), farsi bocciare (in), non passare
Japanese: 失敗する (ja) (しっぱいする, shippai surú)
Korean: 낙제(落第)하다 (nakjehada)
Polish: oblewać (pl) impf, oblać (pl) pf
Portuguese: reprovar (pt), chumbar (pt) (Portugal)
Romanian: pica (ro)
Russian: провали́ться (ru) pf (provalítʹsja), завали́ть (ru) pf (zavalítʹ)
Spanish: (South America) aplazar (es), (especially Central America, Mexico) reprobar (es), (Spain) suspender (es), (colloquial, Spain) catear (es), (Venezuela) raspar (es), (Costa Rica) sacar nota roja, (Mexico) tronar (es), (Colombia) perder (es), (Chile, Colombia) rajar (es), (Peru) jalar (es), flonquear (United States), flonquiar (Americas), desaprobar (es), improbar (es)
Swedish: kugga (sv), köra (sv)
Vietnamese: hỏng (vi), thi trượt (to fail an examination)

to deny a passing grade

Bulgarian: скъсвам (bg) (skǎsvam)
Czech: nechat propadnout
German: durchfallen lassen
Italian: segare (it), cannare (it), bocciare (it)
Polish: oblewać (pl) impf, oblać (pl) pf
Portuguese: reprovar (pt)
Russian: вали́ть (ru) impf (valítʹ), провали́ть (ru) pf (provalítʹ), завали́ть (ru) pf (zavalítʹ)
Spanish: (South America) aplazar (es), (specially Central America, Mexico) reprobar (es), (Spain) suspender (es), bochar (es) (colloquial, Argentina), (Spain) catear (es), (Venezuela) raspar (es), (Costa Rica) poner nota roja, (Mexico) tronar (es), jalarse (es) (Ecuador), pepenar (es), jalar (es), puyar (es)
Vietnamese: đánh hỏng

English