A fork of Rural Dictionary
TV/Anime term. One-sided rivalries is basically a term where two cartoon or anime characters have a rivalry, but when they battle (or compete or dance or whatever the case is), one person of the rivalry always defeats them in said battle.
Dan: You know what I've always noticed, Bob? Bob: What, Dan? Dan: That in that one anime-what's it called-Azumanga Daioh, Sakaki always wins against that other girl...Kagura I believe? Bob: That's a one-sided rivalry, Dan. Dan: So that's the term. And now I know. Bob: And knowing is half the battle.