noun
constantly referring to; with one's nose in
Describes the act of frequently consulting a reference material (dictionary, manual, map, etc.) while doing something. Often used in the pattern 〜と首っ引き or 〜を首っ引きで.
彼は辞書と首っ引きで英語の論文を読んでいる。
He is reading an English paper with constant reference to a dictionary.
説明書を首っ引きで組み立てた。
I assembled it while constantly checking the manual.