What does Panic! At the Disco's song Casual Affair mean?

I'm not sure what it means, maybe something like “We just just had a casual affair but be quiet about it” (honestly have no idea) but to your second part IT IS SO UNDERRATED. read more

Hey, a casual affair. That could go anywhere. And only for tonight. Take any moment, any time. A lover on the left. A sinner on the right. Lay in the atmosphere. read more

Brendon said that him and his wife, Sarah like to talk and think about why people have affairs and cheat while married and it inspired Brendon to write a song to try to understand. read more

The clip does not feature on the album version of the song as Panic were unable to get the sample cleared. read more