be off (one's) feed
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be off (one's) feed
To be uninterested in eating. Oh, I'm off my feed since watching that gory horror movie. She's been off her feed since coming down with a cold.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
be off (one's) feed
To have lost one's appetite: The dog is off its feed this week.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.