noun (lingo) A well-deserved soundly-ringing whack to the back of the head, delivered in the open-hand style. (think Jackie Chan meets Kevin Costner) High marks achieved when used upon an unsuspecting victim. Maximum rating achieved when perpetrated specifically upon someone who has just uttered obvious bullshit, or more generally, upon any total nobhole.

"After listening to the entire lame story, Jack couldn't resist the urge to send Biff's gum flying out of his mouth with a stinging dopeslap."