The vagina of a woman who sleeps around excessively, causing multiple yeast infections, damn near monthly. After taking soooo many dicks to the twat, all the smegma combines making a toxic serum in the cooch, which in turn creates a yeast infection. Once the infections become chronic, and the poor girl lacks the Wisdom to realize what's causing them, her twat becomes what is known as a bread factory. Bread factories make many kinds of bread, but the most common would be sour dough.
When a man masturbates into a loaf of bread (unsliced) then has sex with his wheat-intolerant girlfriend/partner in the sickhope 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..."
"Bread pulling" or "Stutje trek" (translated in Dutch) is a famous Dutch, rather inappropriate game. It can be played with 2 or more male-players (the more people playing, the more disgusting it becomes). The game starts when someone put a slice of bread on the table and says: "Stutje trek". All the guys attending at the table will now have to pull down their pants and start masturbating like their lives depend on it in front of each other until they cum and ejaculate their semen on the slice of bread. Everyone ejaculates their warm semen on the bread till one player remains that hasn't empty his balls. This person has now lost the game and has to eat this semen filled slice of bread while the others watch him eat it.
Person 1: Yesterday evening I had to go to the hospital for a gastric lavage to completely clean my stomach.
Person 2: Oh my, did you drunk that much that they had to pump the alcohol out of your stomach ?