butt crack of dawn

Way too early

The butt crack of dawn is very early morning—the first moment of daylight, or even before.

The phrase plays on "crack of dawn" by substituting the vulgar "butt crack," emphasizing just how ungodly early the hour feels: We had to be at the airport at the butt crack of dawn.

The crudeness conveys the speaker's displeasure at being awake.

Related

first light · wake-up call · ungodly hour · graveyard shift · bright and early · early morning · golden hour · red-eye flight · morning · morning · early morning · morning

Opposites
time of day

butt crack of dawndead of night

Darkest part of evening

middle of the night · midnight · witching hour · late night · dusk

reasonableness of hour

butt crack of dawnmid-morning

Late part of morning

late morning · afternoon · noon · midday · banker's hours

Family

butt, crack, dawn, butts, butted, butting, cracks, cracked, cracking

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated PG