a hollow plastic sphere with holes punched over the entire surface. Used in grade school physical education, these ballistic toys can really hurt when one gets it smacked upside the head!

I used to think Whiffle was onomatopoeic for whistle.. the sound you hear before it makes impact.
Y'know, if you log in, you can write something here, or contact authors directly on the site. Create a New User if you don't already have an account.