The Chinese character for kashimashii (“clamorous”) is made up three small characters for “woman”. In Japan it is understood that when two women get together, they tend to talk a lot. When three get together, it becomes really noisy.
A: Tonari no heya, taihenna sawagashisa da.
B: Sorya soo daroo. “Onna sannin yoreba kashimashii” tte yuu noni, gonin atsumatte shabetteru n da kara ne.
A: Such a racket they’re making next door!
B: What do you expect? If it’s true that when three women gather there is a noisy clamor, now you know what it sounds like when five of them get together.