Definition from Wiktionary, the free dictionary
- (idiomatic, slang) To ride in the front passenger seat of a vehicle, next to the driver.
- When both kids want to ride shotgun with Mom, they'll just have to take turns.
- (idiomatic, slang, figuratively) To accompany someone in order to assist and protect.
- He attended the meeting to ride shotgun for the sales team, in case anyone had a technical question.