JOCKO Meaning of JOCKO in English ˈjä(ˌ)kō nounor jacko ˈja(-( -s )Etymology: French jocko, of African origin; akin to Efik id 3 iok 1 chimpanzee1. : chimpanzee2. : monkey Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012