► 動詞叩き上げる [(5)たたきあげる]
meaning: train rank: 4☆
彼は
裸一貫から叩き上げた
人だ ⇨ He started from naked, zero, and has worked all his way up
► 名詞叩き上げ [たたきあげ]
meaning: worker rank: 4☆
(☛ Someone who doesn’t have formal education for the job and rather learned it through the practice)