cornballcorn‧ball /ˈkɔːnbɔːl $ ˈkɔːrnbɒːl/ adjective [only before noun] American English informal 
cornball humour is extremely simple, old-fashioned, and silly: 
Country and western songs always have such cornball titles.
cornball humour is extremely simple, old-fashioned, and silly: Country and western songs always have such cornball titles.