pickuntil all hours . until all hours {adv. phr.} Until very late at night. He is so anxious to pass his exams with flying colors that he stays up studying until all hours. Categories: add yours adverb Source: A Dictionary of American Idioms 'until all hours' on video until all hours (of the day and night) How to say "until all hours" in English |Vocabulary With Context | YouGlish Advanced English Listening Practice: Sharpen Your Ears Luma's Story sort: relevance, mode: exact match, q: "until all hours", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Comment on this entry