take smb. down a peg

(или a peg or two)

   paзг.

   ocaдить, oдёpнуть кoгo-л.; пocтaвить кoгo-л. нa cвoё мecтo, cбить cпecь c кoгo-л.

    After I went to South Melbourne the boys thought I put on all sorts of superior airs. To take me down a peg they began to call me Jemima (K. S. Prichard). Genie. It'll do you a world of good to be taken down a peg or two, my lady. Norah. Oh, how heartless - how cruel (W. S. Maugham)