(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.
A way of saying there are no drugs without incriminating yourself.
From the fictional Star Wars holiday of the same name, in which every three years wookiees consume hallucinogenic orga root in order to commune with the tree of life. If none of the drug is available, the wookiee elders cancel the celebration for that year.
Alice: Did you get the stuff for the party?
Bob: No, Dave was all out. Wookiee life day is canceled.