One definition is a great idea is that when you see or hear it, you so sincerely wish you had been the one who had it. I do not deal much with social media and the proliferation of cute images, but I thought this one was genuinely hilarious.

Not that anyone asked, but the concept of the three monkeys originated from a simple play on words in the 10th C, located at a Shinto shrine. According to our friends at the Wikipedia, the philosophical saying in Japanese is mizaru, kikazaru, iwazaru “see not, hear not, speak not,” where -zaru is a negative auxiliary suffix meaning “not” and happens to sound like a different -zaru, the voiced form of saru (monkey) used in compounds.
And collect just 8 more monkeys and you can initiate a chrono-apocalypse.