2. To make one's dick sneeze, throw up, explode, ejaculate, cough up white blood, splooge, climax, orgasm, erupt, belch, detonate, spew, or spit, possibly on another person's face.
3. A person who amounts to nothing, or should not be taken seriously.
2. ".. and then she got down on her knees and I jacked off all over her face".
3. "Dude, you need to get up off of your ass and quit watching gay porn, you good for nothing jack off".
Done when horny, when porn is plentiful, or to get rid of a boner in class.
There were three guys at each of the urinals, one on each toilet and two more standing in front of each. There was another pair at each of the two sinks, and at least fifteen spread out across the floor. They all groaned as they shot their loads across the room.
"It's a jack off epidemic!" Jason stood wide-eyed as his dick stretched hard against the fabric. He quickly dropped his jeans and plaid boxers and began to jack himself off in the doorway.
More guys pushed against him, trying to get some privacy to jack off in. He felt three dicks strain against his back.
He felt his dick grow larger and larger as more guys pressed against his ass.
Then he woke up. He looked down at the puddle of sperm in his hand, then quickly pulled his boxers back up and laid down to sleep.