Definition #2: a person who is sexually or romantically attracted to both men and women AND who's been to both extremities of the north-south axis of the Earth's ellipsoid.
As in: "The president's timing as he evacuated his bowels into an adult daiper, standing among world leaders, at global summits, exhibited brass balls, although not in a literal physiological sense."
Providing psychological relief through the open expression of strong emotions as a result of a flexible tube being inserted through a narrow opening into a body cavity.