In reply to The Green Giant:
Personally, I think doing stuff like that's a bit puerile and quite unnecessary. It might raise a single, school-boy titter, then it's a wasted opportunity for giving a route a 'good' name, for whatever reason.
At some point, kids will be climbing these routes, so any FA naming a route should consider this likelihood. Whilst I'm definitely no prude, I think swearing in a route name (just for the sake of it, which ultimately, it always is), is pretty lame - it simply shows a lack of imagination.