A phrase used to hide details, or save yourself from saying something you dont really want someone to know.
Person 1: "What did you say when Cindy asked you what you did last night?"
Person 2: "I just used one of those conversation condoms and changed the subject."
Person 2: "I just used one of those conversation condoms and changed the subject."
by Doug Cota July 15, 2008
The person on the phone being asked to pass messages to a person next to them, thereby preventing the two other people speaking directly.
by Thantheman November 12, 2010