Metcalf rhymes with:
allograph, autograph, bickerstaff, biggerstaff, choreograph, echograph, epitaph, falstaff, flagstaff, grandstaff, grindstaff, hackstaff, hectograph, intergraph, lithograph, longstaff, mimeograph, monograph, overstaff, paragraph, pendergraph, phonograph, photograph, pinkstaff, polygraph, reprograph, riffraff, spectrograph, telegraph, understaff, wagstaff