Very strange or bizarre; used to emphasize mysterious, uncanny events or situations. A four-character idiom often used adverbially or adjectivally.
昨夜、町で奇々怪々な光が空に浮かんでいるのを見た。
Last night I saw a bizarre light floating in the sky over town.
事件の経緯が奇々怪々で、誰も説明できなかった。
The circumstances of the incident were very strange, and no one could explain them.
古い屋敷には奇々怪々な噂が絶えない。
There are always bizarre rumors about the old mansion.