noun
boxed lunch sold at highway rest areas
Trademarked term for a type of 駅弁 (station bento) sold specifically at expressway service areas and parking areas, not at train stations.
See also: 駅弁
高速道路のサービスエリアで、ご当地の速弁を買って食べた。
I bought and ate a local 速弁 at the expressway service area.