ass crack of dawn

noun

An intensifier, used in the same contexts as crack of dawn, but more intense.

Meanings

nounass crack of dawn (uncountable)
  1. CanadaUSuncountablevulgarAn intensifier, used in the same contexts as crack of dawn, but more intense.

    Synonyms: butt crack of dawn

Synonyms & antonyms

nounAn intensifier, used in the same contexts as crack of dawn, but more intense.

Origin

From ass crack jocularly replacing crack in the (preexisting) noun phrase crack of dawn (= "break of dawn"); although ass crack (cleft, gap) and crack (break) are cognate, the jocularity nonetheless rests on the disjunction that is cognitively close to (albeit by some standards not technically) a pun.

Full word history & related roots →
Cite this entry
APA

ass crack of dawn. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/ass%20crack%20of%20dawn

MLA

“ass crack of dawn.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ass%20crack%20of%20dawn. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “ass crack of dawn,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/ass%20crack%20of%20dawn.

Source: ass crack of dawn on Wiktionary, CC BY-SA 4.0.