Lyrics:

Big and fat and bouncy
Rectangle on the floor
You bounce and bounce 'til you can't take anymore
You'll bounce forever, you try and look so mean
You'll wish you'd never been on Satan's Trampoline
How he's gone and got you, he's got you where he wants
Dressed in shorts and vest, you look like a real ponce
You'll bounce forever, you try and look so mean
You'll wish you'd never been on Satan's Trampoline

How many times can you bounce up and down on Satan's big old Trampoline?
I do not know, but I'll let you have a go on Satan's big old Trampoline