(the full monty) Brit, informal everything needed or wanted; the whole thing or the whole lot
of obscure origin, but closely associated with a 1997 film of this name featuring male striptease involving total nudity or ‘the full monty’. Suggestions as to origin include (1) a corruption of the full amount, (2) a reference to a complete suit of clothes available from the British men's outfitters named Montague Burton, and (3) an association with Field Marshal Montgomery, (whose nickname was Monty) who regularly ate a full breakfast when campaigning in North Africa in the Second World War