Rhinoceroach comes from Shadowverse, Cygames' digital collectible card game, where it is a Forestcraft follower tied to the long-running roach combo archetype. In that deck, players bounce and replay cheap roaches to build up storm damage, so the name has become shorthand among players for a sudden, punishing swarm that ends a match. The short clip circulates on soundboards and in gameplay edits as an audio cue for that exact feeling, a tiny creature delivering far more pain than its size suggests, which keeps it recognizable to card game fans.