Mc Fuck Yeah Share definition Flag The careful fusion of a Mc Donald's double cheeseburger and a Mc Chicken. Generally enjoyed by stoners and drunkards alike. Julio "Hey man, what kind of sandwich is that?" Esteban "A Mc Fuck Yeah!" Mc Fuck Yeah by sneakyfett April 19, 2010 0 0 Get merch Get the Mc Fuck Yeah mug. Buy Now — $32.95 See more merch