1/2 oz of Bacardi Limon Rum (or lemon-flavored rum)
1/2 oz of sprite soda
Pour Bacardi Limon rum into a shot glass. Add Sprite (or 7-Up). Place a towel on the table and put one hand on top of the shot glass to seal it so that no liquid or gas from the soda escapes. Quickly slam the glass on the towel so that a lot of bubbles are made and consume so that you catch the bubbles going down your throat.