Anyone who hasn't watched the recent sequel to the series of Finding Nemo; Finding Dory, should stay away from this picture. This really is a spoiler and someone who hasn't watched the movie would not have fun watching the movie after seeing this picture online.
This guy was randomly shopping for stuff in the supermarket when he came across this interesting package with the name Dory on it. Finding Dory was a huge hit at that time and he didn't want this opportunity to make his friend list laugh go away, so he posted a picture with the caption that he had found dory. This really took a lot of effort for him, since Dory wasn't that easy to find, but he finally succeeded in the job due to his commitment and dedication towards a good joke.