goodo adjective 1exclamation 1 adjective1 •(Australia, slang) Good (used after the noun)To Knowles he said: “Quick! Give her tucker!. She hungry. She eat. She sleep. Bimeby she goodo.” — 1937 exclamation1 •(UK, slang) Good; used to show approval or satisfaction.“Now we′re cooking! It works!” crowed Bob. “And now before it grows dark let′s pour it off into our storage tanks.” “Goodo, Bob. We rich now!” Ebony gloated. — 1957