gruntometer means A (non-scientific) device for measuring the volume of a tennis player's grunts of exertion. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
Etymology
From grunt + -o- + -meter.
noun
- A (non-scientific) device for measuring the volume of a tennis player's grunts of exertion.“In the land of the gruntometer, everyone should soon find out exactly how noisy.”