know which side your bread is buttered
idiomPart ofbread
know which side your bread is buttered — idiom
1. to understand where your own benefit lies and behave in a way that protects it.
1.idiom
Definition
to understand where your own benefit lies and behave in a way that protects it.
Example
Rohan praised the director because he knows which side his bread is buttered.
The adviser backed the richest donor because she knew which side her bread was buttered.