know what side of (one's) bread is buttered

know what side of (one's) bread is buttered

To know how to best ensure one's success. I know what side of my bread is buttered, so I was very nice to the recruiter and promptly sent her a thank you card after our interview. A: "It was always so annoying the way Tom sucked up to the boss." B: "Yeah, but now he's a regional manager, so I guess he knew what side of his bread was buttered."
See also: bread, butter, know, of, side, what
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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