'Click bait' is a
popular word used on the
internet. It is when you use a picture or sentence to lure
people to click on your website/link/video, but is not always entirely true. For example, you could make a thumbnail for your YouTube video with bold letters saying: 'I NEARLY DIED?!' and lots of watchers would immediately click on your video because they want to know what happened. It is considered click bait only when the video maker lies about what the video is about.