A statement one makes when they are about to leave the office, creating the image that they are being well behaved, but the more 'educated' colleagues know full well that person will be down the boozer until close.
A rare and fortunate occurrence during busy hours found in car parks. The straight-through Jones is when two (vacant) parking positions line up end to end, allowing the lucky finder to drive straight through from one to other other negating the need to reverse in or out of said parking space.
Person 1: I will never find a parking spot at this rate!
Person 2: Oh look Dad, there's a straight-through Jones!