tall,高的，boy,男孩。可能为比喻用法，或来自法语 haut bois,字面意思为高的木头，引申词 义木制衣柜，来自 haut,高的，词源同 high,bois,灌木，木材，词源同 bush.比较 lowboy.
英文词源
tallboy (n.)
also tall-boy, "high-stemmed glass or goblet," 1670s, from tall + boy, though the exact signification is unclear. In reference to a high chest of drawers it is recorded from 1769, here perhaps a partial loan-translation of French haut bois, literally "high wood."