Fun Dictionary -> laugh

laugh - Foolish Dictionary definition

A peculiar contortion of the human countenance, voluntary or involuntary, super-induced by a concatenation of external circumstances, seen or heard, of a ridiculous, ludicrous, jocose, mirthful, funny, facetious or fanciful nature and accompanied by a cackle, chuckle, chortle, cachinnation, giggle, gurgle, guffaw or roar.

laugh - Vulgar Dictionary definition

To laugh on the wrong side of the mouth; to cry. I'll make him laugh on the wrong (or t'other) side of his mouth.