When standing over a girl as she fingers your prostate from your anus. so you can simultaneously Blow a load on her belly and blast watery lube filled shit all over her chest and or face.
V. The act of banging a chick in the ass, shooting your wad in her butt, then stepping back while she shoots splattery cum/shit on your chest, appearing similar to the spreadshot pattern of a shotgun. Also known as the Mississippi Mudgun or the Hungarian Howitzer.
Me and Linda got drunk last night, I fucked her in the pooper, then I asked her for an Alabama Buckshot.