"Boffing" is a less offensive term than "fucking" and therefore the term boffing is more readily used in polite company.
humping fucking screwing
"No one knew he was boffing the librarian every night on stacks of books."
Or
"Fill my cavity," she yelled, while wildly boffing him on the dentists chair.
Colloquial word used to refer to highly trained specialists in their respective fields; especially when the exact field of specialty is unknown.
Usually used when an new and unknown piece of technology is being discussed, and having no idea what branch of speacialty is responsible.
Used commonly in 60s and 70s British spy movies and war movies to infer generally to clever people developing, researching weapons etc...
The Boffins at the laboratory must have worked hard to make this new flying car....
Who knows how it works? That's one for the Boffins....
When a man masturbates into a loaf of bread (unsliced) then has sex with his wheat-intolerant girlfriend/partner in the sick hope that this will make her extremely ill. Also known as loaf pumping.
Bread boffing can be found in Frank Zappa's "Broken Hearts are for Arseholes" track, from the album Sheik Yerbouti. The line is "Sir Richard Pump-a-loaf, the demented bread boffer..."