To verbally claim the ability to ride in the front passenger seat of a car. An allusion to stage coaches in 19th-century America, which were often protected from outlaws by someone who sat wielding a shotgun next to the driver. Mom, don't let Jake ride up front—I called shotgun! A: "OK, let's get back on the road." B: "I call shotgun!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
phr. to call out and claim the seat beside the driver in an automobile. Bob called shotgun so he could sit next to the driver.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.