pickaback adverb 1verb 1forms 3 adverb1 •on the back or the shoulders.For, as our modern wits behold, / Mounted a pick-back on the old, / Much further off; much further he / Rais'd on his aged beast, could see — 1663 verb1 •(old-fashioned) Dated form of piggyback (“carry someone on the back or shoulders”). formspickabacked · pickabacking · pickabacks