It's how they lure you in.
I believe it's called "BAIT and switch."
The Big Bang Theory Season 4, Episode 3
Cinnamon is chick BAIT.
The Big Bang Theory Season 12, Episode 23
Nah, G-Harmony recommends after two hours,
it's time to cut BAIT.
The Big Bang Theory Season 10, Episode 16
We're BAIT. They're using us as BAIT.
Money Heist Season 1, Episode 4
using a bull's head for BAIT.
Vikings Season 1, Episode 2