When a male is in the middle of a threeway and double penetration is involved he may call "shotgun anus", giving him the right to stuff the girl's pooper with his fat choad. The first person to call "shotgun anus" has dibs on the chick's crap factory. See choad, and/or calling shotgun for further reference.
by Johnny Albright March 02, 2005
by HumperNDumper02 September 08, 2009