1 definition by Double Dust

Grumption

The quality of a beer mugs 'thumbrest', and its ability to allow one total control over the mug.

A beer mug with perfect or absolute grumption can be picked up with a single thumb. A large amount of beer mugs have good grumption, but the majority are on the lower scale of the grumption continuum.

by Double Dust January 20, 2008