(idiomatic) To fail to finish school, or a given subject, program or course, due to academic shortcomings; i.e., to have too many flunking or failing grades (marks).

(US, transitive, intransitive) Of a student, to fail a class; to not pass. / (US, transitive) Of a teacher, to deny a student a passing grade. / (US, dated, informal) To shirk (a task or duty).

A custard; any of several bland, gelatinous foodstuffs, usually made from stewed fruit and thickened with oatmeal, cornstarch or flour.

An expression of contemptuous disbelief.

(organic chemistry) Any organic compound containing an acyl functional group directly attached to a fluorine atom.

(idiomatic) A disturbance, usually one caused within a group of people who are generally placid and unexcited.

(zoology) In placental mammals, a fluid contained within the amnion membrane that surrounds a developing embryo or fetus.

(physics) a fluid whose stress at each point is linearly proportional to the strain rate at that point

(physics) a fluid whose stress at each point is not linearly proportional to the strain rate at that point; i.e. its viscosity depends on the applied shear force

(chemistry) Any derivative of a hydrocarbon in which every hydrogen atom has been replaced by fluorine.