D defs.my
Entry 3 senses Webster, 1913

boff

· IPA /bɒf/
01 n. a hearty laugh.
  1. 1.
    a hearty laugh.(Theater)
  2. 2.
    a joke or gag line that produces hearty laughter.(Theater)
  3. 3.
    something very successful, especially a box-office hit.(Theater)