Slang A line in a play or movie, for instance, that elicits a big laugh: "He does not opt for the top boffs, unnaturally inflated, but allows his comedy build through a leisurely accumulation of strange details” ( Vincent Canby).
Slang a huge laugh.
Slang A conspicuous success. Also referred to as boffo, boffola.
a large laugh
a line in a film etc that elicits these types of fun
a hearty laugh.
a tale or gag range that creates hearty laughter.
some thing extremely effective, especially a box-office hit.