Arsimus Prime Share definition Flag If a chick has an arse like Niagara Falls, she can be called Arsimus Prime. The leader of the autobutts. Yo is Arsimus Prime coming tonight? Yeah, I think her and her gigantic arse should be here soon. Arsimus Prime by Bollocks&Arsimus March 23, 2022 0 0 Get merch Get the Arsimus Prime mug. Buy Now — $32.95 See more merch