Put one over on - Idioms by The Free Dictionary
put one over on
put one over on (one)
To fool or deceive someone; to make someone the victim of a prank or hoax. I'm not as naïve as I once was, so you won't be putting one over on me again! The conman spotted Jane from a mile away, and quickly figured out how he would put one over on her.
put one over on deceive someone into accepting something false. informal
get/put one ˈover on somebody/something (informal) get an advantage over somebody/something: I’m not going to let them get one over on me! ♢ Don’t believe a word he says. He’s just trying to put one over on you.