Definitions for "Phone plug"
Usually 1/4 inch. Used with tip and sleeve or tip, ring and sleeve - for carrying electronic signals. The sleeve is used for ground and the tip and ring carry the signals.
The male counterpart to the phone jack.
A plug (or the corresponding mating jack) that is 1/4-inch in diameter and 1-1/4-inches in length used for a wide variety of audio connection applications.