Spread it on thick phrase
The verb "lay" and "pour" can substitute for the verb "spread".
If someone "spreads it on thick", he/she exaggerates his/her feelings, overstates his/her experiences, or flatters somebody in order to impress people and gain benefit from them.
I knew that he spread it on thick for me because he wanted to borrow some money.
There is no need to spread it on too thick, or else no one can get the hang of your project. Keep it simple and clear.
My parents are not really into people who are always spreading it on too thick because those guys make them feel annoyed.
The verb "spread" should be conjugated according to its tense.
The exact origin of the phrase "spread it on thick" is unknown, but it is assumed to allude to the practice of laying on paint or plaster. The phrase came into popularity in the 1800s.