wearing a smile

wear nothing but a smile

1. To smile beamingly, especially for a long period of time. I can tell that Mike is the one. I've been wearing nothing but a smile since we got together. A: "How is Tom holding up?" B: "Remarkably well. He's worn nothing but a smile, despite how tough the situation has been for him."
2. To be completely nude (not necessarily smiling). The advertisement gained national attention for featuring a woman wearing nothing but a smile. Apparently there are a few beaches in the region where you can wear nothing but a smile.
See also: but, nothing, smile, wear
Farlex Dictionary of Idioms.

wearing a smile

verb
See wearing nothing but a smile
See also: smile, wearing
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • wear nothing but a smile
  • wearing nothing but a smile
  • put a smile on (one's) face
  • put a smile on face
  • put a smile on someone’s face
  • raise a smile
  • smile at
  • smile at (one)
  • plastic
  • plastic grin
References in periodicals archive
Wearing a smile is such an effective accessory it's no wonder the current fashion trends include an oral care regimen that includes the whitening and brightening of teeth.
Make a smile your most powerful fashion accessory