blow smoke (up somebody’s ass)

idiomPart ofass

blow smoke (up somebody’s ass) — idiom

1. To deceive or flatter someone by saying things that are not true.

1.idiom
Definition

To deceive or flatter someone by saying things that are not true.

Example

The salesman was blowing smoke up my ass about the car's condition.

Don't blow smoke up his ass; tell him the real problem.