British humor?!

British humor?

In British humor what does the phrase or something similar to the phrase "and Bob's your uncle" mean? It always seems to get a laugh from British audiences.

This is what I got from Wikipedia: Bob's your uncle is a commonly used expression known mainly in Britain and Commonwealth countries. It is often used immediately following a set of simple instructions and roughly carries the same meaning as the phrase "and there you have it." For example, "Simply put a piece of ham between two slices of bread, and Bob’s your uncle!”.

And here's the rest of the article:

http://en.wikipedia.org/wiki/bob's_your_...