Spinoff of WWJD for Jesus, this acronym stands for What Would Conan (the Barbarian) Do? Often used by the manliest of men to follow the right course of action when facing a moral dilemma.
Alan: So what did you do when that chick was getting mugged last night? <he had run away from the scuffle>
William: I asked myself WWCD? So sure enough I gutted those cowardly dogs and bedded the grateful wench.
Alan: Damn, that's amazing, I can't believe I criticized you for wearing a sword all the time.