WordWeb Online

1. Deprive of by deceit
   "He diddled me out of my inheritance";
   - victimize, swindle, rook, goldbrick [N. Amer, informal], nobble [Brit, informal], bunco [N. Amer, informal], defraud, scam [informal], mulct, hornswoggle [N. Amer, informal], short-change, con [informal], victimise [Brit], grift [N. Amer, informal], ream [N. Amer, informal], bunko [N. Amer, informal]
    
2. Manipulate manually or in one's mind or imagination
   "Don't diddle with the screws";
   - toy, fiddle, play
    
3. [N. Amer, vulgar] Have sexual intercourse
   - sleep together, love, make love, sleep with, have sex, know [archaic], do it [informal], be intimate, have intercourse, lie with [archaic], bed [informal], get it on [informal]
    
4. Spend time ineffectually; procrastinate
   "Both spent years diddling doing other projects";
   - fanny around [Brit, slang], fanny about [Brit, slang]

Derived forms: diddling, diddles, diddled

Type of: cheat, chisel [informal], copulate, couple, manipulate, mate, pair, rip off [informal]

Encyclopedia: Diddle, Diddle, Dumpling, My Son John