Deep Throat; So many ladies confuse "Deep Throat" with "Oral". As far as I know "Deep Throat" is when The Penis penetrates the Trachea/Osephogas. While so many ladies advertise as a fav, only certain ladies can perform, and some do it so well.
Some men ask for deep throat when there is no possible chance of doing that. In my mind it's about taking in as much as possible, it's not necessarily gagging?