WordWeb Online

1. A car that is old and unreliable
   "the fenders had fallen off that old clunker";
   - bus, jalopy, heap, hooptie [US], banger [Brit]
    
2. An event that fails badly or is totally ineffectual
   "the first experiment was a real clunker";
   - turkey, bomb, dud, flop
    
3. Someone who is unsuccessful
   - flop, dud, washout

Derived forms: clunkers

Type of: auto, automobile, bust, car, dysphemism, failure, fizzle, flop, loser, machine, motorcar, no-hoper, nonstarter, unsuccessful person

Encyclopedia: Clunker