From the Indian word lun meaning penis, to 'cock slap' someone.

The act of cock slapping by ones grandfather or if you're not a grandfather yet, to cock slap while eating Orville Redenbacher's PoppyCock.

The act of a jewish male, while rapping, he simultaneously takes his cock out, and after profusely rigging his mast, he lets it fly free, straight into a more 'free spirited' females face, ejaculating on her cheeks as he slaps her.

Such an act is rarely occurs.

The act of sneaking up on someone and slapping said person in the face with an erect penis without whom knowing of the deed (a surprise cock slap).

When a man utilizes his logic, reasoning and aptitude to destroy a woman's irrational argument that is largely based on emotional appeal. In the most serious of cases, a man will incapacitate and humiliate a woman so severely with his words that it is akin to him unzipping his pants and slapping her repeatedly across her face with his penis.

To slap someone with your cock(penis). Usually performed in the face, with a left to right motion.

using ones penis to slap the face of another person. also called a mushroom tattoo because of the redness left behind by the hit.