Bibendum, commonly referred to in American English as The Michelin Man, is the official mascot of the Michelin tire company.
When Chris ends up in a vocational school auto shop class made up of Italians in "Stand By Meg", he starts imitating them and makes a 'hit' on the Michelin Man as a favor to Firestone. After Chris is able to return to regular high school, he finds himself in trouble with the police when the Michelin Man identifies him for the assault.
The Michelin Man is voiced by Mike Henry.