Putt-Putt and Shit-Shit
From Barney Bunch wiki
The Humongous Bunch. Putt-Putt is actually the name of the dog (not the car who was also named Putt-Putt in the games). Putt-Putt says he's the g*yest dog in the universe. The car's real name is Sh*t-Sh*t and is even faster than Drew Pickles' p*nis car.