Tide Pods are prepacked containers of a caustic detergent that are eaten by fucktards.
They are intended to drop into the wash to get clothes to dissolve completely and solve all your laundry problems. However, idiots tend to eat Tide Pods dry and thus dissolve themselves much more slowly.
The Tide Pod Challenge was started by Joseph Stalin to get rid of colleagues he had grown tired of. Today, it continues among dumbfucks who want to make themselves hilarious YouTube video stars. They are often the sole remaining survivors of Darwin Award winners' families after impressive fireworks and shotgun deaths.