The act of smacking one's penis across another's face
The morning after heavy drinking, the horizontal red welt on his face was evidence that he received a Lombardi Slap after passing out.
by Pimpo June 10, 2004
The act of hitting sombody in the face with a flaccid penis.
Jon was lombardi slapped by a jiggly elephant penis and it created a welt across his face.
by dickmonster69 August 26, 2011