My wife and I were reminiscing about the late great Humphrey Lyttleton. The UK members of the forum probably need no reminding of this man and his BBC Radio 4 show.
http://en.wikipedia.org/wiki/I'm_Sorry_I_Haven't_a_Clue
...anyway, some of the jokes this man got away with on weekend afternoons is incredible. Most of the bawdiest ones revolved around Samantha, the girl who kept the score (even though she was never there). His style was dead pan, delivered with apparent and complete innocence. Here's a good example:
"Samantha nearly made it - she's been detained at the last minute in the city's Latin quarter. An Italian gentleman friend has promised to take her out for an ice-cream, and she likes nothing better than to spend an evening licking the nuts off a large Neapolitan."
Edit;
Link not working for some reason.