Pip eventually got killed off and replaced with another character because he was deemed " annoying " by the creators

Mormons and hot people only go to heaven in the Southpark universe , and pip isn't Mormon nor that hot , because he's a child , And pip is a Catholic Angelican , so can't go to heaven

So pip went to hell , where Damien lives , and people make headcanons that they're happy in hell together because they're finally reunited .