Used to tell someone to stop saying something that is hard to believe, silly, or not true.
Examples
Come off it, there's no way you finished all that work in one hour.
A: I once ran a marathon without any training.
B: Oh, come off it! No one can do that.
Common mistake
Not: Come off it this story, it's not true.
Say: Oh, come off it — that's not true.
It's a fixed exclamation; you can't attach an object to it.
More on “come off it”Another example · Tell it apart · Goes with · Tip
Another example
If my friend said he could speak five languages fluently after just a year, I’d probably say, 'Come off it!' because that sounds impossible.
Tell it apart
Come off it — there's no way you ran it in four minutes!
The wheel came off.
Goes with
- come off it (+ challenge)
