I swing my cat by the tail for minutes at a time every day and once i'm done, I let go and he goes flying. lol
Why are you doing that to your cat?
He's fat and deserves to be punished.
Animals don't understand punishment in the same way as people. Rather than hurting him, consider a diet change and make sure he gets enough play time and exercise
That's mean of you but I can't let a little cat like this stop me.
If you feel like things between you and your cat aren't working out, it may be best to talk to a vet or shelter about him.