When a man, whose penis is locked in a chastity cage, places a dildo at the place where usually his hard penis would be, and strokes the dildo, tricking the brain into thinking that he's stroking his penis, thus triggering an ejaculation. Similar to how a crippled person would scratch a lost limb.
"Hey, how is your time in chastity going?"-
"Very frustrating, but I've almost mastered the phantom jerk."
In the Nordic highlands, it was widely though to be rude when prince's of lords would pick their teeth with their fingers in a jerking motion, while speaking ill of their house.
This custom was adopted by the Europeans in the 1600's
When your son is mouthing off, when he should be zipin' the lip. He's being a mouth jerk
A person so virtuous they stop to let someone into a TRAFFIC CIRCLE/ROUNDABOUT
Mary! Please move yourself through the roundabout! You're making yourself look like such a circle jerk!!
A circle of 12 naked fags, six of them are butt pirates and six of them are limpy wristed fags. The butt pirates do the rounding the limpy wristed fags get rounded out.
That butt pirate went to a circle jerk and gave 11 fags aids.
It is the act in which more than one person engages in jacking each other off as a form to relieve their sick fetishes.
"Yesterday, Ronnie and I engaged in a circle jerk."
A sexual act when a group of men ejaculate and start masturbating in a circle.
Man, that was an awesome circle jerk last night. We should totally do it again someday!