Pumping jacks

When a man is having sex and does a jumping jack while simultaneously thrusting into his partner.

After the party, I went back to her place and gave her 10 good pumping jacks.

THE PUMPING JACK

When a dominant straps a dildo to his head, and penatrates either the cunt or Anus while Pornogrind is playing loudly in the background

"THE PUMP JACK"
Dude Todd! Me and that Goth chick Raven did "THE PUMPING JACK" for the first time last night, It made her whole week dude

pump jacking

When you got to poop and its jumping in and out of your butthole

Man I gotta poop, it's pump jacking bad