Don't make me laugh!

don't make me laugh

A humorous response to a statement that one thinks is ridiculous or highly improbable. A: "Monica is coming to the meeting tonight, right?" B: "Don't make me laugh—she hasn't been to one all year."
See also: laugh, make

Don't make me laugh!

That is a stupid suggestion! You a judge? Don't make me laugh! Don't make me laugh. Tom could never do that.
See also: make