from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Slang A line in a play or film, for example, that elicits a big laugh: "He doesn't go for the big boffs, artificially inflated, but lets his comedy build through a leisurely accumulation of bizarre details” ( Vincent Canby).
- n. Slang A big laugh.
- n. Slang A conspicuous success. Also called boffo, boffola.
- transitive v. To have sexual intercourse with.
- intransitive v. To engage in sexual intercourse.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to have sexual intercourse (with someone)
- n. a big laugh
- n. a line in a film etc that elicits such a laugh
from the GNU version of the Collaborative International Dictionary of English
- n. a hearty laugh.
- n. a joke or gag line that produces hearty laughter.
- n. something very successful, especially a box-office hit.
Probably from b(ox) off(ice).
From boff, to hit, variant of buff, from Middle English buffe, a blow, from Old French, of imitative origin.(American Heritage® Dictionary of the English Language, Fourth Edition)