(idiomatic, often sarcastic) A great amount of enjoyment or entertainment, or something or someone that provides this.

Parodying an ostentatious expression of evilness in online written forums such as chat rooms.

A signature laugh associated with villains in films and acting, sometimes represented by muahahaha or bwahaha.

(transitive) To respond to a negative situation lightheartedly, as though it were a joke.

A deep, hearty laugh

To laugh a belly laugh.

plural of belly laugh

The soundtrack of laughter sounds that accompanies a television comedy show

(idiomatic) A funny thing or person.

To laugh. / (UK, idiomatic) To joke; kid around. / (UK, idiomatic) To enjoy oneself; have fun.