TARDIS

The Doctah's T.A.R.D.I.S is his device used for traveling throughout space and time, often through the Time Vortex. He uses it for everything from escaping dire situations to going upstairs without using the stairs. It is shaped like a blue zip-up wardrobe, because the Mastah repaired the chameleon circuit, thus changing its shape when it first fell into his house. He did this so he could steal it. It was inexplicably filled with Water Bottles in season 4.

Abilities
The Tardis’ exterior is barely large enough to allow The Doctah inside, even though it is bigger on the inside. The Tardis is thought of as weighing no more than ten pounds, allowing it to be picked up-this allowed The Doctah to use it as a weapon in Episode Two: The Memers.

Behavior
The Tardis is sentient, as shown in the 2011 Doctor Who Episode titled “The Doctor’s Wife“, even though this hasn't directly been shown in Doctah Who, except perhaps when it moves down the stairs in Episode 5.