Last margarita of the night

When you combine the last drops from bottles of liquor and cups of beer so you can insert it into the most sober girl at the party before she picks the guy she wants to drink it. Typically, this ancient mating ritual means they will spend the night together.

I met my third wife when she picked me for the last margarita of the night. The taste was brutal, but she looked so happy i knew she was the one.