How do you cheer up your country's team when you watch sports games? In japan, we say "Nippon cha cha cha" (にっぽん チャチャチャ) in the soccer game. "Nippon" means Japan in japanese and "cha cha cha "do not have any special meaning. Just for good rhythm. How about your country? I heard that American say "I believe that we will win" and Iranian say "du du du du Iran". Are those correct?
During the 1982 FIFA World Cup qualifiers, Kuwait played against New Zealand in New Zealand, and fans of the New Zealander team had signs that told the Kuwaiti team to “Go back to your camels”. Kuwait ended up winning the match, and when New Zealand played against Kuwait in Kuwait, the Kuwaiti team brought 100 camels to the field.
Kuwait ended up qualifying to the World Cup in Spain. A Spanish newspaper wrote an article making fun of the Kuwaiti team, saying that they will be late because they were coming on their camels. The Kuwaiti team decided to use a real camel as their mascot, and in fact arrived very early and insisted to have their camel allowed with them or they would withdraw from the competition. The Spanish authorities allowed the camel to stay with the team.
Since then, one of the most popular football songs in Kuwait has been “Our Camel, Lovely Camel”: https://m.youtube.com/watch?v=tkp4lSlxxlE