I believe it's a very witty reference
to the ongoing feud between theatre critics Tim "wanker" Walker and John "Shutters" Shuttleworth, as any Private Eye reading viewer shall recall.
Very dry humour indeed and quite esoteric, but I may be pissed.
( ,
Sat 20 Feb 2010, 20:35,
archived)
Very dry humour indeed and quite esoteric, but I may be pissed.