A female lays down in missionary position or in doggy style on the bed. While you stand on a higher elevated piece of furniture and jump from there and on landing immediately insert your penis into the females vagina. Very difficult yet very effective.
"I think I ruptured my penis while doing the Flying Gamahooch."
If it doesn't involve an inner tube and a rope swing, You're NOT doing it right-!
The flying gamahooch can be painful if the 'tube is'nt inflated enough-!