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..."