“Bad Liar” is usually about trying to hide real feelings and failing —most commonly, romantic feelings, guilt, or emotional confusion. In Selena Gomez’s case, she said the song is about that rush when you first start liking someone but can’t keep it cool.

What it means

  • Selena Gomez’s “Bad Liar” : about crushing on someone and being unable to hide it.
  • Imagine Dragons’ “Bad Liar” : about a strained relationship and the honesty that comes when a breakup or separation is near.

Simple takeaway

The title points to someone who keeps saying everything is fine, but their actions and emotions give them away.

If you want, I can also explain the meaning of a specific version of “Bad Liar” line by line.