A fork of Rural Dictionary
A time in the evening when it's very late, you are very trashed, and the end of your night is approaching. Usually a time of the evening when your condition allows you to make bad choices.
Guy 1: "I think that chick at the end of the bar wants to go home with me..." Guy 2: "Man, she is really hit... It must be twelve dark thirty...
Advanced lesbian sex position: think Lunette the clown
Last night was wild she had me at twelve thirty ;)