Maybe it's the Irish?

.

Two Irish nuns have just arrived in the USA by boat
and one says to the other, "I hear that the people
of this country actually eat dogs."
"Odd," her companion replies, "but if we shall live
in America , we might as well do as the Americans do."
As they sit, they hear a push cart vendor yell
"Get your dogs here" and they both walk
towards the hot dog cart.
"Two dogs, please! ," says one. The vendor is
very pleased to oblige, wraps both hot dogs in
foil and hands them over. Excited, the nuns
hurry to a bench and begin to unwrap their 'dogs'.
The mother superior is first to open hers.
She begins to blush and then, staring at it for
a moment, leans to the other Nun and whispers
cautiously.

"What part did you get"?