Why? Because this Grinch is a swinger with a Whoville couple, played by Kristen Wiig and Mikey Day.
And hey, I'm all into swinging! Swing away, kids! But oh, sweet, sexy Grinch puns:
I don't even have any particularly fond childhood memories of the Grinch and I'm crying:
Could this be the thing that finally ends my slightly cursed attraction to Pete Davidson?!
Besides, apparently this isn't even the first entry in the Grinch + swingers canon! There's a theory that the Grinch's parents in the Jim Carrey movie had a key party.