A "gladiatorial arena" refers to a place where gladiators in ancient Rome fought each other as a form of entertainment for the audience. Full definition
It's a sentiment that once cruelly downplayed the grotesqueries of young people entering into gladiatorial arenas and killing one another for sport (and for great television). (digitalshortbread.com)
So, who in the political space will next jump into this new gladiatorial arena? (epolitics.com)
As for Zombies, there will be a wider range of customization and tons of Easter eggs, with the three launch maps consisting of the Titanic, an Ancient Roman gladiatorial arena, and Alcatraz. (collider.com)