Noun and verb describing a solid smack by the palm to someone's nose, eye, cheeks, and lips area, but can rarely include ears if done by a professional or Yao Ming. This phrase is typically used in a threat that is never executed. Reserved for talkers, not walkers.
Boss: "No complaints about coming in to work on Saturday morning, alright people?"
Kiss-Ass: "Oh, never! Let's do brunch
Boss: "Raise your hand in favor."
Johnson: "I'll give you a hand...a high five in the face."
Boss: "What's that?"