A subject or matter for laughter; spec. a laughing stock. Also as a mass noun. Now rare.

(a) = laughing matter n.; (b) = laughing stock, n. (obsolete).

a subject for laughter or levity; chiefly in negative contexts as no laughing matter, etc.

A cause of laughter; a joke. In later use frequently ironic, as that's a laugh, what a laugh, etc.

A cause of laughter; a very amusing person or situation. colloquial.

= scream, n. c. colloquial.

An amusing person or thing; a joke; fun; no giggle: no joke (see joke, n. 3). colloquial.

A laugh; a cause of laughter, a joke, a very amusing situation. colloquial.

U.S. colloquial. A cause for hilarity; an amusing person or thing. Cf. crack, v. additions.

U.S. slang. Something amusing, ridiculous, or laughable; a joke.