I know this is a serious discussion but I can help giigling like a school girl at the name
I can see it now:
Two black belts meet at a dojo
The first says to the second: "so what have you been doing all weekend?"
The second replies: "I've been practicing my wankan".
The first says: "Geez, I've been doing that since I was 13, how much practice do you need to get it right." sorry if I offended anyone