h^2 Share definition Flag (Pronounced H-squared) Shorthand way of writing "happy hour" - this shorthand code is necessary because the government reads your email. I called the h^2 because Buffalo's has Wingo tonight. h^2 by ACB2424 September 10, 2005 0 0 Get merch Get the h^2 mug. Buy Now — $32.95 See more merch
