When you are at Waffle House at 3am and it is a better use of your syrup-smothered waffle to slap it across the face of your drunk buddy sitting in front of you, rather than to eat it. It has a better effect if you have ordered your waffle with chocolate chips as they give the waffle more weight as well as velocity with the slap.
Me: Hey the waffle house cooks been ashing his cig in my waffle again while he cooks it.
Dude: Are you gonna eat it?
Me: No, I'm gonna waffle slap the shit outta Andrew with that damn waffle when he gets back!