1. To start/end sex at exactly 12:34, day or night.
2. To take a shot/smoke it up at exactly this time. (Some say it must be done daily, others that it only requires one hit/shot)
It may also be reffered to as the Midnight 34, Or Midnight/"High" noon Rock.
1. Random Girl: "When Josh and I went at it he made me a member of the 12:34 club!"
2. Random Person: "Yea jon and i made the High noon yestadayy.