So Charizard's name, 噴火龍, transliterally means "flamethrower dragon", but the "噴火" or "flamethrower" transliterally means "fire spraying", so Charizard's nickname is "老噴" or "Old Spray". There are two main Charizards in the anime, one who beat Ash, who's nicknamed "Smart Spray" and Ash's own Charizard, who's nicknamed "Red Spray".