The scientific measurement of booty shaking. A single waggledat is defined as the exact amount of booty shaking to give a standard single white male an erection at a dance club. Note that causing multiple erections does not necessarily give a single booty shaking a value greater than 1 wd, for the increase is measured not in quantity but in quality and therefore is valued higher only against resistance.

When you eat dirt for the first time and leave your family to build a shack in the woods