one for the road noun2 •A final drink before one leaves.[...] and the rebuilding of Birmingham New Street with its Taurus Bar ("where one for the road - the railroad - can be taken with impunity"). — 2021 •A snack to consume while traveling."Cotton candy," he said. "I want the blue kind."[…]He opened it and took out a few bills and handed them to Joey. "Here," he said. "Get one for the road." — 2011
