green around the gills

/G R IY1 N ER0 AW0 N D DH AH0 G IH0 L Z/
adjective
  1. 1

    Ill or unwell, especially as indicated by one's appearance.

Source: https://en.wiktionary.org/wiki/green%20about%20the%20gills, https://en.wiktionary.org/wiki/green%20around%20the%20gills