(Noun): short for "wookiee sledgehammer"; another term for an incredibly, almost unbelievably, large erect penis. Is so named due to the fact that its hardness and size could theoretically allow the owner (wookiee OR human) to use it as a sledgehammer.

Running for exercise and picking up trash you find along the way. It's good for the body, mind, soul, and environment! Started in Sweden but is making its way to the U. S.

(Verb): The act of using a wookiee sledge to mushroom slap someone in the head with such force that it results in severe, vegetable-state-inducing brain damage and/or instant death.