red in the gills—getting red in the face, showing signs of anger or indignation:
- While calling us round for punishment he got as red in the gills as a turkey-cock.
rosy about the gills—having a fresh complexion (indicating good health):
- Vladimir studied in the mirror the man behind him. And at the same time he had the advantage of seeing his own face, clean-shaved and rosy about the gills.