When he swims now he'll just keep going in circles.
Whatever dude, everyone knows one armed people don't swim.
His name is Phillip but his good friends call him "Lefty"
If he lost his leg too, they could call him Eileen
If he loses his other arm and gets thrown in the water they can call him Bob.
If he loses both arms and both legs they can call him Matt.
And if they hang him on the wall they can call him Art.Also, they could put him under a car and call him Axel.
So, where is the punch line? I don't get it.