When I used to visit an office in Birmingham (UK), there was a truckers breakfast stop that did what they called 'the mother'.
It was the mother of all breakfast butties.
A round flat breakfast roll - about six inches in diameter - on which you could have your choice of bacon, sausage, beans, fried egg, fried tomato etc etc.
You only ever bought a 'mother' once - after that you'd see sense and have a half mother!