This reminds me of a radio exchange an old Eastern airlines pilot told me about that happened to him. He was the captain on Eastern flight 69 going into New Orleans and his co-pilot was working the radio.

New Orleans Approach: "Eastern 69, airport 12 O'clock eight miles, contact the tower."

Eastern 69: "Roger"

Changed to tower frequency

Eastern 69: "New Orleans tower Eastern sixty nine is eight out (slight pause as the co-pilot realize what he just said)... Pardon the expression.."