Touchscreen Trash is an achievement which can be won if a random event occurs in which Apple$oft creates the iCure device to help develop a cure, but after the global release, it becomes a failure because the people are sweating too much/emitting excessive body fluid and ruin the touchscreens.
How to get this achievement?
iCure's first announcement typically pops up when 5% of the cure is complete, and with the global release occuring when more than 50% of cure is completed. Once iCure is released globally, evolve the Sweating symptom, and you're done. If you're playing Necroa Virus, evolve the Hyper Salivation symptom. On Shadow Plague, you need to evolve Steroidal Boost before its global release.