to hurt yourself in a rather clumsy and outlandish way.
Often a serious injury or at least very painful looking.
A direct homage to the ridiculous ways actor
John Ritter would
prat fall throughout his career (most notably "
Three's Company").
Dude, he rode his bike
over the edge and
rittered himself on a tree. It was awesome/terrible.
Don't jump like that man, you're going to ritter yourself on that
railing.
Ha ha...did you see that? He totally rittered on that door!
