picknose in a book . nose in a book {n. phr.} Busy interest in reading. — Used with a possessive. Mother can't get Mary to help do the housework; she always has her nose in a book. Categories: add yours nose noun Source: A Dictionary of American Idioms 'nose in a book' on video Nose in a book Nose In A Book Nose In A Book have (one's) nose in a book sort: relevance, mode: exact match, q: "nose in a book", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Discuss