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the thirty minutes before nightfall, or the thirty minutes after night falls.basically the 1 hour time frame as it becomes dark.
i told david the party starts at dark-thirty.
by da trick biatch December 20, 2005
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3
Something hicks from illinois say when they're referring to the time right after the sun sets.
Be home before darkthirty ya'll.
by AlissaGrace April 01, 2005
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4
It is actually o' dark-thirty. It is a military term refering to beinging somewhere before the sun rises
We have to go, we have PT (physical training)at 0' dark-thirty.
by Goldi December 21, 2005
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5
the hour of the day that it becomes dark so it could be a half hour before or a half hour after it gets dark
i told bobby and jonny boy to be at my house to suck some little dick at dark-thirty
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