what the fook is reverse swing?

[Gazwag]

Thanks gazwag. Thanks for your very full and detailed answer, I appreciate it.

But googlys? What the sweet mother of jesus are they?!?!?

Are the googlys where the ball should be rubbed in order to achieve the 'S' shape profile throught the air?

No problem, I can't take the credit for the answer though, it came via google