1 Guy 1 Screwdriver also known as 1 Man 1 Screwdriver is a shock video hosted on various websites which shows a man inserting a glass inside his anus. Then the video cuts and he proceeds by pulling a screwdriver out of his penis which damages the penis causing blood to flow out of it. The ambience of this video (lighting, music) is also very disturbing. Some people say the man that made this video also made Jarsquatter, also known as 1 Man 1 Jar.