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A smelly planet in the middle of a galaxy called Kasterborous. It was home to the Time Lords, the most annoying aliens ever. They got destroyed because they were too full of themselves.
'Gallifrey? That's where the Time Lords came from. I swear they were loud enough to wake the dead.'
'My grandma was born on Gallifrey. She says she got a headache just from being there.'
'The planet got destroyed because the Time Lords were too self-absorbed to notice the war coming.'