Not finding this one to be hard.... My mom made me practice tongue twisters when I was little, and I still fail at them a bit. But this seems closer to something I would actually say, so it doesn’t seem as hard?
How do you make "an SJW nagging Flat-Earth mother-in-law who lives in a van down by the river with Seymour, a Chris Walken-sounding and silent film-watching vegan cannibal zombie moose." into an tongue-twister?