Derived from Buzz Aldrin who punched a Moon-Landing-Conspiracy-theorist in the face for calling him a coward, a liar and a thief.
Full gear meaning a full-face helmet, goggles, protective upper body pads/armor, riding apparel, knee pads, riding shoes, and gloves. All are required to be worn except the gloves, but performing a "Buzz-Aldrin" with gloves on holds higher merit and accomplishment (this is because of the added challenge while wiping).
The act is named after the famous Astronaut Buzz Aldrin because the act is similar to the challenge an Astronaut faces when its time to go to the bathroom. Since Buzz Aldrin was also the second man on the moon, he deserves a little extra credit!