A fork of Rural Dictionary
The act of using your underdeveloped third leg as a lethal weapon and proceeding to begin an extreme killing spree with the force of your massive cock being pounded against another's face.
Hey bro I cant wait to feel your Schlong Slap tonight, it feels so refreshing to have your meat against my forehead.
To be slapped with one's schlong.
1) I was fed up with her, so I decided to whip it out and give her a much needed schlong-slapping. 2) I really got schlong-slapped with work today at the office. 3) Whoever was working on this before me really deserves a Grade-A schlong-slap to the dome. 4) I decided to work out this afternoon and perfect my schlong-slap technique.