What kind of cheese is Lancaster bomb?

There is no cheese called "Lancaster bomb". It's likely a slang term or a joke.

It's possible you're thinking of something else, like:

* A specific type of cheese with a similar name: There might be a cheese with a name that sounds like "Lancaster bomb" but is slightly different.

* A nickname for a cheese: Some cheeses are given nicknames based on their appearance or taste. It's possible "Lancaster bomb" is a nickname for a cheese.

* A local term: "Lancaster bomb" might be a regional slang term for a specific type of cheese.

If you can provide more context or clues, I might be able to help you figure out what cheese you're looking for!