Lay-it-on-thick Definition

verb

(idiomatic) To exaggerate or overstate a feeling or emotion.

She laid it on thick when her pet died.
Wiktionary

(idiomatic) To flatter.

He knew he needed to lay it on thick in his job interview.
Wiktionary

(idiomatic) To guilt, guilt-trip.

Her mother laid it on thick, telling her to call home more often.
Wiktionary