Top definition
It's Drink Thirty: (V.) Slang for Happy Hour.
A measurement of time when it is time to party. The phrase "It's Drink Thirty" is similar to the phrase "O Dark Thirty". It is broader than the phrase "It's Five O'clock Somewhere" in that "It's Drink Thirty" implies that it is time to enjoy adult beverages right now!
Hey Mates! It's Drink Thirty, belly up to the bar!
by Roberto Marquez May 28, 2008
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