Full English Breakfast with **Brown Sauce**

[Carol]

Geoff:
> Well, call it a bacon sandwich then for the benefit of those who
have had a sheltered upbringing - although I cannot see why bacon
butty is funny though I have chuckled over "spotted dick", especially
in my teenage years.... <snip>

Carol: 

It's "funny" to a child in the same way that "Uranus" is funny. "butt"
means rump or posterior or whatever "nice" word you prefer to use for
the part of the anatomy that you sit on. At least, it has that meaning
in American English, and we're talking about American children here.
Yeah, "bacon sandwich" will do nicely.

Carol, who wouldn't use "knock up," for example, even though it's
innocuous in British English