Synonyms for Diddle (same or very similar meaning)
WordNet sense 1 (deprive of by deceit):
bunco, con, defraud, goldbrick, mulct, rook, scam, swindle, victimize, nobble, short-change, hornswoggle, gipWordNet sense 2 (manipulate manually or in one's mind or imagination):
fiddle, play, toyFrom the ODE community, based on WordNetadd/edit