Put the mint and sugar in the bottom of the glass and muddle it around with a muddler, a spoon, or your cell phone (kidding) until the mint is bruised and battered.
Add 1/2 ounce of bourbon and stir to dissolve the sugar.
Pack the glass with crushed ice and top off with the remaining bourbon.
Get HAMMERED.
Notes
You could make a pitcher of this and serve in individual crushed-ice-filled glasses, but you run the risk of ruining your friends’ lives if you do that.