Definition
Used to tell someone to stop doing or saying something.
Hey, leave it out! That hurt!
Leave it out, I've had enough.
Alright, leave it out with the complaining!
Used to express disbelief in something someone has said.
"I tell you, he was driving a sports car." "Leave it out!"
You said you won the lottery? Leave it out!
"I saw Tom Cruise yesterday." "Leave it out!"