The word frenulum on its own is often used for the frenulum of prepuce of penis, which is an elastic band of tissue under the glans penis that connects to the prepuce, or foreskin to the vernal mucosa, and helps contract the prepuce over the glans. This is sometimes colloquially known as the "banjo string". In the event of frenulum breve or frenular chordee, or to ensure that the glans can be freely and completely exposed, the frenulum may be partially or totally removed by circumcision.
The frenulum and the associated tissue delta on the underside of the penis below the corona has been described in sexuality textbooks as "very reactive" and "particularly responsive to touch that is light and soft." The “underside of the shaft of the penis, meaning the body below the corona” is a “source of distinct pleasure.” Repeated stimulation of this structure will cause orgasm and ejaculation in most men.
In men with spinal cord injury preventing sensations from reaching the brain, the frenulum just below the glans can be stimulated to produce orgasm and peri-ejaculatory... Read More