The ramp is an escalating sensation at the tip of the penis where you might stop before the point of no return, but it will continue to escalate and push you over the edge without any stimulation. This can be related to allergies, gut breathing (intestinal inflammation or similar), or sensitive skin. The sensation is likely tied to the hormonal release (i.e., oxytocin) of the ejaculation. The trap of the ramp is that flexing the PC muscle and trying to execute the technique will lead to an escalating sensation at the tip that leads to ejaculation. If you notice the ramp is starting, you must not flex the PC muscle and must simply wait while mentally trying to dissipate (dissolve) the horniness and energy in the tip. If you try to flex the PC muscle, it will escalate. If you focus on the orgasm, it will escalate as well. You must take the risk, do nothing, and meditate for a few seconds while the energy dissipates. Only if you feel the ramp subsiding can you carefully move the energy down and flex the PC muscle.