v. The act of hiding a large ass, usually with extremely tight or extremely baggy clothing.
"Damn, girl, you might want to butt smuggle that booty."
To conceal or hide an item to prevent its detection, especially by the authorities; to steal or shoplift; to keep a secret.
"John butt smuggled the items from the store."
"Leo, what did you do last night?" "Me and the girlfriend were butt smuggling the midnight salami."