Why is whacking a Wiffle ball whacky?
Whacking a Wiffle ball is whacky because it has holes.
A Wiffle ball is also whacky because it whirls when you whack it.
When you whack a whacky Wiffle ball, it whizzes and whirls.
When you whack a Wiffle ball, it whips and whirs around.
Whack!  
Whee! There it goes!
Whop! Whump! Whomp! Whoop!
You can’t keep a whacky Wiffle ball from being whacky.
You can’t stop a whacky Wiffle ball from whirling and whizzing around.