Redonkulously early in the morning. Often it is still dark out. Commonly used when one must wake up early after a night of drinking, or getting up to go on a trip. Also can be referred to "Oh dark hundred"
Person 1: "Dude, what time do we have to get up tomorrow?"
Person 2: "The freaking ass crack of dawn."
by K.Spence June 7, 2006
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An early time of awakening for those that usually get up around noon. Thus, the time would be something like 10-11 a.m. or so.
Lou: What time did you get up?
Stu: Today it was like the crack of dawn for me! Like 11 a.m.
Lou: Dude, that's more like the butt crack of dawn.
by Pie Lady February 14, 2006
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Dawn's crack - a special place; Also, early sunrise (similar to 'zero dark thirty' in military slang).
1. That woman's pie is some mighty fine – I love the crack o' dawn. 2. People, we'll be on the objective by crack o' dawn!
by Carl Davidson July 22, 2020
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It either means two things the first sight of day or dawn

Or it could just means someone name dawn most likely a girl bends over
"I see the crack of dawn "
"Oh my dawn just bent over
by Iamacommondblock August 6, 2016
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The very early portion of the day - around or before dawn. Derived from the term "crack of dawn."
"Man, I had to get up at the ass crack o' dawn to bring my mama to the airport for a 6am flight."

Beatrice got up every morning at the ass crack o' dawn to milk the cows.
by Ghetto Scribe June 28, 2006
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The early morning light of day. Too early to wake up especially after an all nighter.
the guy next door decided to mow his lawn at the crack ass of dawn, doesn't he know its Sunday?
by ravenlocks July 1, 2009
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