Tim War
From Tardis Wiki, the free Doctor Who reference
The Tim War was an event where people from all over time and space gathered in one place to chant and sing songs. Panda travelled to the Tim War using a Time Scrunchy, and spoke to a woman who told him that the Tim War would soon be sealed off so that no one would be allowed in or out ever again.
Panda later found out that Iris Wildthyme blew up her people and the Clockworks at the conclusion of the Tim War. (PROSE: From Wildthyme with Love)