What is the meaning for the figure of speech bobs your uncle?

Answer 1

The expression "Bob's your uncle" is a British idiom or slang, usually said after some simple instructions. It means "There you have it" or "There you go." For example, to tell someone how to open a ring-pull can, you might say, "Pull the ring up away from the can until the pouring hole appears, and Bob's your uncle." It's origin is unclear, but one theory is that it derives from the British Prime Minister, Arthur Balfour, who before he was Prime Minister had been appointed as Minister for Ireland by his uncle, Robert Gascoyne-Cecil, Marquess of Salisbury. From this arose the idea that having "Bob" as your uncle ensured success, just as following the simple instructions did.

Answer 2

"Bobs your uncle" is a British expression that means "there you go" or "it's done." It is often used to signify that something has been completed successfully or easily.