The act of jerking off to a song or beat that you can hear
I was about to watch some Phub and I heard some 50 cent on my tv I proceeded to jerk to the beat
When you eat beef jerky while you jerk off.
"What are you doing tonight?" "Oh not much, just planning a Jerk Jerk session later."
When your dick has a sunburn but you proceed to masturbate against your better judgement.
"Troy's laid up in bed after jerking the jerky."
"Should've taken a cold shower to stop from jerking the jerky."
when a girl jerks you off slowly
"Helena gave me a sloth jerk last night."
When you're tired but still need to get rid of that woody before your nap.
"Just got home from work and I'm going to need a light jerk and a nap before going to happy hour"
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."