noun
Slang term, often used for men with long hair, sometimes with a slightly derogatory or joking tone.
あのバンドのギタリスト、ロン毛がトレードマークだよね。
That band's guitarist's long hair is his trademark, isn't it.
ロン毛の男が急に増えた気がする。
It feels like guys with long hair have suddenly increased.
Formal or neutral term for long hair, not slang.
Abbreviation of ロングヘア (long hair) with 毛 (hair) replacing ヘア, creating a slangy compound.