混こん線せん

noun, noun or participle which takes 'suru', intransitive verb

crossed line; crosstalk

Technical term in telecommunications for interference or crossed connections on a phone line or circuit.

• 電でん話わが混こん線せんしていて、相あい手ての声こえが聞きこえにくかった。

  The phone line was crossed, and it was hard to hear the other person.

noun, noun or participle which takes 'suru', intransitive verb

getting mixed up; talking at cross-purposes

Figurative use when different topics or threads in a conversation become confused or tangled.

• 話はなしが混こん線せんして、何なんの話はなしをしているのかわからなくなった。

  The conversation got mixed up, and I lost track of what we were talking about.