In the "Parachute Prank" vlog by Sir Geybin, he likely pulls off a humorous prank involving a parachute or a parachute-like scenario. The setup could involve surprising friends or strangers with a fake parachute jump or a dramatic reveal that catches them off guard. The reactions are probably filled with shock, laughter, and disbelief as they process the prank. Sir Geybin’s playful style adds to the fun, making it an entertaining watch that highlights his creativity and sense of humor.