know what side of (one's) bread is buttered(redirected from knew what side of your bread was 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."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.