Bob’s your uncle
Bob’s your uncle – This term may come from the Irish politician Balfour who in 1887 was unexpectedly promoted to the post of Chief Secretary for Ireland by his uncle Robert, Lord Salisbury. This stroke of nepotism is said to have inspired the term. The phrase is used as if to say “and so it is done”. e.g. “You just turn on the power, hit the switch and Bob’s your uncle”.
Anyone else have an origin to this phrase?