padfoot
Padfoot is a big black dog that Sirius Black turned into, and it's also the name he got because people thought he had huge feet. But really, he just looked like a f***ing monster.
Sirius Black turned into a dog and scared the living daylights out of everyone.
People thought he had huge feet because he looked like a giant dog with glowing eyes.
He was called Padfoot because he was a big, ugly dog and everyone hated him.