it's to laugh

it's to laugh

Also, it is to laugh. It is absurd, laughable, as in You think the trial will be over in a week-it's to laugh! This expression is usually put as an exclamation, as in the example. [Second half of 1900s]
See also: laugh
References in periodicals archive ?
If he gets hit with the ball his reaction is not, "Ouch, that's sore", it's to laugh.