What Does “ride shotgun” mean?
Definition:
To ride shotgun means to sit in the front passenger seat of a vehicle during a trip. Figuratively, the phrase refers to the support or aid given to someone in a situation or project.
The expression riding shotgun is derived from shotgun messenger, a colloquial term for express messenger. A special armed employee of the express service using the stage for transportation of bullion or cash would sit beside the driver, carrying a short shotgun (or alternatively a rifle), to provide an armed response in case of threat to the cargo.
More about riding shotgun on wikipedia
Example(s)
Would you like to come to the party and ride shotgun? We really need your help!
This idiom is in the war category.
