Lock, stock and barrel means everything, the whole thing. The term lock, stock and barrel refers to the parts of a gun. There are three major parts of a gun, the lock or firing mechanism, the stock or wood handle, and the barrel which the bullet travels through. If one has a lock, stock and barrel, then one has everything that makes up a gun. In time, the phrase came to be used figuratively to mean the whole thing. The earliest use of the phrase lock, stock and barrel to mean everything or the whole thing is in a letter written by Sir Walter Scott in 1817: “Like the High-landman’s gun, she wants stock, lock, and barrel, to put her into repair.”
Examples
Wexford farm sells lock, stock and barrel for over €1.4m (The Independent)
Kudlow added, “The Democrats have run this state for a long time — lock, stock, and barrel. That has to stop.” (The Hartford Courant)
If the RSS has its way, it would shut the university down, lock stock and barrel and throw the keys into the Bay of Bengal. (The Deccan Chronicle)
He’s still asking for more (and his Republican uncles are clearly ready to turn over to him whatever’s left of the family savings, lock, stock, and barrel). (The Huffington Post)
Things got more interesting in 2014 when Rupert’s News Corp acquired Move, lock, stock and barrel. (The Sydney Morning Herald)
He insisted that if a player wanted to line out for the county, that player would first have to transfer to a Kildare club and make the move, lock, stock and barrel. (The Irish Examiner)