One for the road is a common slang phrase used to refer to a final alcoholic drink consumed before leaving a gathering or a party. While there is no exact synonym for this term, there are several other phrases that one may use to convey the same meaning. Some alternatives include "last call," "final round," "nightcap," "parting shot," or "closing brew." Other expressions that one might use could include "one more for the road," "farewell drink," or "final libation." Regardless of the phrasing, the context of the occasion often determines which synonym is most appropriate.