This is the 5345th most frequent Japanese word.
moussy
"Moussy" is not a Japanese word but rather a fashion brand in Japan specializing in trendy, casual clothing.
'MOUSSY' is used as a brand name here, indicating a specific store.
この服はMOUSSYで買いました。
I bought these clothes at MOUSSY.
'MOUSSY' is referring to detailed knowledge about the brand or its products.
彼女はMOUSSYに詳しいですね。
She is knowledgeable about MOUSSY.
'MOUSSY' is recommended as a brand to check out or purchase from.