A swift slap to the forehead using one's penis.
If you don't give me that ice cream, I will shpap you silly.
Jeff tarafından 15 Şubat 2004, Pazar
The sound your dick makes when you slap someone across the face with it.
"We sh-papped 'em!"
RANKLANCER tarafından 28 Haziran 2009, Pazar