<P> ... And Bob 's your uncle is an expression of unknown origin , that means `` and there it is '' or `` and there you have it . '' It is commonly used in United Kingdom and Commonwealth countries . Typically , someone says it to conclude a set of simple instructions or when a result is reached . The meaning is similar to that of the French expression `` et voilà ! '' </P>
where does saying bob 's your uncle come from
unknown origin