A way of preparing a margarita where someone sits in a chair with their head held back and their mouth wide open. Someone else then pours in their mouth a shot of margarita mix followed by a shot of tequilla a little more mix. When finished, the one who received the drink leans forward, shakes their head to mix the ingredients and drinks it in one gulp.
Sit over here I'll give you an upside-down margarita!
by Captain Bluebeard April 10, 2007