WWE legend Jimmy "Superfly" Snuka is in bad shape ... with his doctor claiming his stomach cancer is terminal and he only has 6 months to live.
73-year-old Snuka Skype'd into a court hearing in his murder case from his hospice in Florida -- and during the hearing, his doctor dropped the bombshell about his health.
As for the murder case, Snuka is accused of killing his then-girlfriend, Nancy Argentino, back in 1983.