Terryman makes a reference to the manga 'Kyojin no Hyoshi', or 'Star of the Giants'. In response, Kinnikuman imitates the manga's protagonist, Hyuma Hoshi.
The "big-ears guy" Kinnikuman mentions is then-Yomiuri Giants pitcher Suguru Egawa, who Kinnikuman was most likely named after.
Suguru and Meat randomly perform a "manzai" double-act routine. Suguru acts as the boke (the funny man) and Meat acts as the tsukkomi (the straight man)