red herring

noun
UK /ˌred ˈherɪŋ/
US /ˌred ˈherɪŋ/

Something that tricks you into looking the wrong way.

The detective ignored the red herring and found the real clue.


OTHER MEANINGS

2. A smoked fish that is red in color.

We bought a red herring at the fish market for breakfast.

3. A topic used to change the subject in an argument.

Bringing up the weather was just a red herring to avoid the real issue.

4. A false clue in a story or puzzle.

The author planted a red herring to keep readers guessing until the end.