goofy goober noun1 •(informal, slang) A foolish or amusingly silly person; a goofball; a goober.You've turned me into the comedy relief of the group. That's all I am to you...and the rest of them... one big joke. Perry's a goofy goober, but we love him anyway. Do you know how that makes me feel? — 2017 formsgoofy goobers