off your oats

off (one's) oats

old-fashioned Disinclined to eat; having little or no appetite. Mrs. Bailey said you were off your oats, sir, so I brought you some chicken broth to keep your energy up.
See also: oat, off
Farlex Dictionary of Idioms.

off your oats

lacking an appetite. informal
See also: oat, off
Farlex Partner Idioms Dictionary
See also:
  • off (one's) oats
  • fashion
  • (draw the sword and) throw away the scabbard
  • milk and water
  • milk-and-water
  • pet
  • Astor
  • Mrs. Astor's pet horse
  • Mrs. Astor's plush horse