The act of ejaculating on someones dvd copy of either of the two Scooby Doo Movies and then screaming zoinks at the top of your lungs.
Shaggy was beating off a nutt in the mystery machine right onto a dvd copy of Scooby Doo 2 : Monsters Unleashed.
The rest of the gang could hear zoinks being screamed from inside the house.
Therefor Shaggy was Zoinking.
Originally from Battlefield 1942, also seen in subsequent Battlefield games featuring aircraft.
While being pursued in a dogfight, the pilot will pull up sharply into a 90 degree vertical climb. He/she will then exit the aircraft (his/her velocity will cause them to travel upwards alongside their aircraft for a short time). The pilot will equip an RPG / SMAW and attempt to shoot the pursuing enemy out of the sky before climbing back into your aircraft and continuing flight without stalling / crashing. (Note: You must be the Engineer class to equip Rocket Launchers)