2 of lime
2 shot of silver tequila (or Tequila)
12 oz of mexican beer (or rootbeer schnapps)
12 oz of energy soda (or orange soda)
Have the 2 separate 2oz shots of tequila ready, take an empty pint glass and quickly pour beer and energy drink at the same time until it starts to foam up, then drop 1 shot of tequila and a lime, chug til the last drop.\r
Now....repeat procedure to finish the other half of your drink.