From the people who brought you the shotgun... The double-barrel shotgun will revolutionize the way you get trashed...A double shot of vodka immediately followed by a shotgunned beer...alcohol consumption has never been so efficient
The act of a girl sucking two dicks at one time. Hence the term Double BarrelShotgun.
"Do you think you can handle a Double BarrelShotgun sweetie?" Me
"I dont know maybee both but if not definatly one!" Her
"In that case we better go with the single shot!" Me.