Hairy Paughter
A loud, dumb joke that people yell when they're too drunk or too bored talking about Harry Potter, and it's about someone's smelly bits.
'I got in trouble for saying hairy paugher at the end of the year!'
'Why is the Hogwarts Express so loud? It has a hairy paugher!'
'I used a hairy paugher in my essay and got an F!'