The phrase "King of the Hill" is an idiomatic expression that means being in a dominant or powerful position, especially among competitors. Full definition
Is it good enough to be crowned the new king of the hill in the beat - em - up genre, or does it fall flat on its pretty face? (glitchcat.com)
They still view themselves as kings of the hill with competition only coming from equal - sized outfits — much like American car companies in the early 1970's. (slaw.ca)
Big king of the hill style battles in the main room and intense close - quarters fights in the side tunnels. (lambdageneration.com)