Also known as: 尿意ゲージ
A visual representation of the amount of Pee inside a character, often seen in Have To Pee posts. Common portrayals include Faucets, Drinking Glasses and disembodied Bladders/Balloons, or the amount measured in millimetres/as a percentage. If this takes the form of a thermometer style measurement bar, or like that as a Dial, it also qualifies as a Gauge.