Previously known as "stoners", pot foggots are characterized by those who use THC (i.e. marijuana) on a regular basis. These people often display short-term memory loss, reduced motivation and impaired cognitive skills. They also show an affinity to Cheetos, console-based video games and living in their parent's basements.
Joe used to be fun to hang out with, but now he's a complete pot foggot. All he does is sits in his mom's basement playing XBox.