There are 2 definitions of boff in English:

boff1

Syllabification: boff
Pronunciation: /bäf
 
/
North American informal

verb

[with object]
Have sexual intercourse with (someone).
More example sentences
  • When she's not boffing the mail boy in the photocopier room she's scheming to get him fired.
  • News media outlets around the world are reporting that he boffed a lady against her will and the cops didn't investigate for 3 weeks.
  • Supposedly she was boffing him for four years.

noun

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An act of sexual intercourse.
More example sentences
  • Struggling businessman Joe picks up a sweet young thing who suggests he park his convertible on a side road for an open-air boff session.

Origin

1920s (in the sense 'blow, punch'): imitative. The current sense dates from the 1950s.

Definition of boff in:

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Word of the day ween
Pronunciation: wēn
verb
be of the opinion; think or suppose

There are 2 definitions of boff in English:

boff2

Line breaks: boff

Entry from British & World English dictionary

noun

Short for boffin.

Definition of boff in:

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Word of the day ween
Pronunciation: wēn
verb
be of the opinion; think or suppose