Apparently, the CAA refuses to register anything that it considers rude .... so that rules out most of the usual four lettered words, that are used by pilots
But I do recall some years ago, that the former champion jockey, Willie Carson, registered his personal runabout as G-WILI.
His old friend & rival jockey, Walter Swinburn, then registered his Cessna T303 as G-PUSI, & always tried to park it next to G-WILI, at the race-courses, preferably in full view of the TV cameras!
