A Trotmobile is a car that has two legs. In a sense a robot that is also a car.
During the Industrial Revolution, people became so in with cars, that they wish to use them everywhere; thus the Trotmobile was born!
From the Atlus RPG game; Steambot Chronicles (Bumpy Trots in Japan.)
A person that has a great degree of cubustable pressure built within the anus that is released with an extreme powerful force of air causing a rotation of wind.