Schrödinger's Dick
The name of the famous thought experiment commonly used in the explanation of Quantum Mechanics; Schrödinger's Dick touches on the fundamentals of dual states of matter, and their effects on a macroscopic system.

Schrödinger's Dick outlines a scenario where, since both the position and velocity of a dick cannot be known, it is said to be in a state of both cumming and not cumming whilst receiving fellatio.
"Aww shit baby, I thought I was going to cum... damn you, Schrödinger's Dick!",

Viagra, Cialis and Levitra are all medications that treat ED via the onset of Schrödinger's Dick.