squinisman Share definition Flag a person who has a square dick (a dick that is as long as it is wide) also known as a squinis. Rebel has a 1 inch squinis. He's a squinisman. squinisman by LaZer_GeN0CiDE August 30, 2012 0 0 Get merch Get the squinisman mug. Buy Now — $32.95 See more merch