cornball /ˈkɔɹn.bɔl/noun 4adjective 1forms 3 noun4 •A ball of popped corn stuck together with soft candy from molasses or sugar. •(US) A corny person; an uncool, stupid, or lame person.Who's this cornball, man? •(US, informal) An unsophisticated person. •(US, informal) Something or someone excessively corny.That movie was a real cornball. adjective1 •(informal) Naive, corny.I know this sounds cornball, but I'd like to somehow make a difference in people's lives. — 1994 formscornballs · more cornball · most cornball