- Home
- Idioms
- know which side bread is buttered on
know which side bread is buttered on
know which side one's bread is buttered on
Prov. to be aware of where your money comes from; to be loyal to the person or thing that will benefit you the most. Wife: Please be sure not to upset Grandma. You know we can't do without the money she sends us every month. Husband: Don't worry. I know which side my bread is buttered on.