When you're feeling like a genius, like when you finally grasp a weird science fact - pentadactyly, anyone? - throw in the 🐒🖐️💡 combo to signal that aha moment. Imagine texting your friend after learning that some humans are born with five fully formed fingers on each hand, and for some reason, it blows your mind - perfect time to bust out the monkey, hand, and lightbulb emoji to convey your excitement.