Hope no one's done this yet
BATWING BITCH!*
(technically I 'spose that mainly concerns the testes, but whatever).

I used to do a variance on The Batwing when I was a kid that I called "Penis Trampoline". Simply stretch your ballsack from either side with both hands and flick your wrists up and down so your penis leaps up and down like an ugly kid on a trampoline. Beats the piss out of a Slinky.

*only makes sense if you've seen "...Waiting"
(ElGranto, Fri 13 Mar 2009, 1:03, 2 replies)

Not my favorite
I prefer the goat.
( Anthropos Was making beer on, Fri 13 Mar 2009, 8:12, closed)

I like Batwing
Because of the catchphrase.
(ElGranto, Mon 16 Mar 2009, 20:52, closed)