flunk out phrasal verb informal especially American English (see also flunk)
to be forced to leave a school or college because your work is not good enough
flunk out of
Ben flunked out of college.

[TahlilGaran] Dictionary of Contemporary English ▲

flunk out
flunk out (of school)
to be forced to leave school because of failing work.
He had been a computer-science student before he flunked out of a California university.

[TahlilGaran] English Idioms Dictionary ▲

flunk out
fail a course or fail out of school
The boy was very smart but he always flunked out of his language class.

My friend flunked out of the computer course at school.

[TahlilGaran] English Idioms Dictionary ▲

flunk out
v. phr. To have to withdraw from school or college because of too many failing grades.
Fred flunked out of college during his junior year.

[TahlilGaran] English Idioms Dictionary ▲