lay it on

[lay it on] or [lay it on thick] also [put it on thick] or [spreadit on thick] or [lay it on with a trowel] {v. phr.}, {informal} Topersuade someone by using very much flattery; flatter.

Bob wantedto go to the movies. He laid it on thick to his mother.

Mary wascaught fibbing. She sure spread it on thick.

Compare: PUT ON(2b).