face like a fiddle

face like a fiddle (plural faces like fiddles)

1. (colloquial, simile) A long face; a melancholy expression.
   • 2006, Bowering Sivers, Jammy Dodgers Go Underground, page 347:

     'She's got the wiffle-woffles,' said her mother. 'She was all right when she came back […] but now she just mopes around, face like a fiddle. […] '