Catch phrase and war chant of the popular 1980's toy line and cartoon, G.I. Joe. Each G.I. Joe team member would shout out "Yo Joe!" when battling the evil international terrorist organization COBRA. "Yo Joe!" should not be confused with 'yo joe (joseph), which would be used to gain the attention of a person named joseph (joe).
Duke shouted "Yo Joe!" as he led the charge against COBRA COMMANDER's hideout.