The specific Birmingham Saddleshank wherein the target of a window is reduced to the target of an awaiting anus in a window.
Steve: Hold on, Dave, I’ve just gotta wind the window down, lean my arse out of it and take a dump, I don’t think we’ll be off the Birmingham ringroad before I have to open the brown blast-doors.
Dave: Go for it.
Steve: Oh yeah, that’s the stuff.
Dave: Oh... my... cuntfucking... God...
Screech of a Mighty Hawk: SOUTHAMPTON SIDESADDLE