Question

what is the meaning of butter someone up?
the salesperson praised me several times, but i knew he was just buttering me up.
to compliment someone because one wants something
to become very angry

Explanation:

The phrase "butter someone up" is an idiom. Idioms are expressions that have a meaning different from the literal meaning of the individual words. In this case, "butter someone up" means to compliment someone because one wants something.

Answer:

To compliment someone because one wants something.