Cast into One's Teeth
(To). To throw a reproof at one. The allusion is to knocking one's teeth out by stones.
All my faults observed, set in a note book, Learned and conned by rote, to cast into my teeth.
Shakespeare: Julius Coesar.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Cast into One's Teeth from Infoplease: