비속어로

In a sentence

• 그는 비속어로 친구에게 농담을 했다.

  He joked with his friend using slang.

  In this sentence, '비속어로' indicates that slang language is being used to make a joke.

• 비속어로 말하는 것은 예의에 어긋나요.

  Speaking in slang terms is against good manners.

  Here, '비속어로' refers to the undesired use of informal or unpolished expressions.

• 그녀는 비속어로 표현된 글을 읽고 실망했다.

  She was disappointed reading a piece written in slang terms.

  In this context, '비속어로' describes how the piece of writing was phrased, emphasizing the informal or vulgar choice of words.