dogface

noun3

1. •
   (US, slang) A foot soldier, especially during World War II.

   • Yass. I never got above the rank of shavetail. We were the dogfaces who gave ’em hell at Chateau Thierry. — 1962
2. •
   (slang, offensive) An ugly person.
3. •
   Either of two pierid butterflies of the New World genus Zerene.