That's a 'Paul Daniels'
Only you're supposed to accompany it with the phrase 'That's magic!'
( Agnostic Antichrist Baltimora, Wed 2 May 2012, 17:22, 2 replies, latest was 12 years ago)

bollocks, I knew there would actually be a real phrase for it.

( the mighty badger Aphrodite, on a bar stool, by your side, Wed 2 May 2012, 17:23, Reply)

Also known as the Spiderman, I believe...

( Devil_In_Tights the *real* DiT!, Wed 2 May 2012, 17:32, Reply)

I believe in that case
you are encouraged .. no, obliged .. to catch your spaff in your hand and then fling it at her, whilst shouting "go web, go!"
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 2 May 2012, 17:34, Reply)

That's the one.
I wonder if anyone's actually ever done these, or if they are made up by 14-year-olds who have heard of both sex and comics.

Wait, that's also b3ta. Ah, I see.
( Devil_In_Tights the *real* DiT!, Wed 2 May 2012, 17:35, Reply)

I have. Loads of times, actually.

( Monty Boyce, My cheese game is strong, Wed 2 May 2012, 17:44, Reply)