A curious redditor discovered the Merc with a Mouth's Hogwarts house hidden in a flashback in Deadpool No. 7. As it turns out, Deadpool is a Hufflepuff, and, while I'd like to have him in Slytherin, this isn't up for debate. Hufflepool is canon.
Deadpool No. 7 features a flashback to the 2005 release of Harry Potter and the Half-Blood Prince. While the red-suited anti-hero waits in line for his copy, some jackass starts to drive around the parking lot and read out the ending: "SNAPE KILLS DUMBLEDORE." (Note: this actually happened in 2006, at a midnight launch of Harry Potter and the Deathly Hallows .) When he encounters the spoiler years later, Deadpool hits him twice: once for ruining the book, and once for framing Steven Avery. Because why not, right?
As the good folks at /r/harrypotter noticed, Deadpool sports his Hufflepuff pride at the Harry Potter launch event, wearing black-and-yellow robes. Colorist Nick Filardi came forward to say that, although he originally made everyone's favorite mercenary a Gryffindor, "the editors insisted on Hufflepuff."
And for good reason. Deadpool's quirky tastes and honey badger-esque recklessness make him the perfect Hufflepuff. You know how much he would love seeing students from other houses doused with vinegar for trying to access the Hufflepuff common room. Can you even handle how much fun Deadpool would have had with Tonks? I can't.
Most fans are happy to embrace Deadpool's house sorting, but some still find it necessary to debate why Wade Wilson should be in Gryffindor or Slytherin instead. Those people need to stop, because this is canon, and therefore not up for debate. Plus, it makes for some pretty hilarious crossover jokes, like this one from redditor dragonlibrarian:
"Hufflepuff said I'll take the lot, and teach them just the same!"
Then, as if experiencing a sudden premonition, she said, "OH GOD NO WAIT NOT THAT ONE-"
But it was too late. Hufflepool was canon.
Long live Hufflepool.
Images: Donners' Company; Giphy