Shotgunning
From Wiki Weed
The act of turning a blunt or joint around and placing the lit end in your mouth, then blowing out to create a stream of smoke from the other end that can be inhaled by a second party (or French inhaled through the blowers nose). A shotgun can be administered by holding hands to create a chamber, over a surface like a book or cowboy hat, or just by placing the recipients mouth an inch or so from the end.
