I'm not sure how to Google this since it concerns actual usage of rude hand gestures in a region of the UK in 2007. It's for a scene of road rage taking place between a London driver and someone from the Midlands.
Basically, if the London driver made a W gesture with his hands would the other driver take it to mean 'wanker' or 'whatever'.
Also is the 'dickhead' (right hand indicating a penis growing from the forehead) still used in the Midlands? It seems to have died out in the South.
Thanks in advance.