When a person calls out "shotgun" it typically means he or she wants to sit front in the vehicle. If you are not in range of a vehicle and "shotgun" is being yelled, I best advise you to run or duck for cover.
Taking a rip of a blunt and blowing it back through the blunt. Another person then breathes in the rip from the other end of the blunt through their nose.
stoner 1: hey bro, wanna shotgun my hit?
stoner 2: no man thats gay stoner 1: no brah its hands free smoking.. just breathe in the other end of the blizzy
stoner 2: ok you're right I'm blitzed off one hit
A firearm that typically fires a slug or shot pellets; sometimes bean bags, rubber shot, and other non-lethal and lethal ammunition; all different shot sizes; classified by gauge instead of caliber unlikes rifles, handguns, machine guns