Meaning of Angry Face Emoji In rage, a yellow face with a frowning lips, eyes, and brows wrinkled downward. Google's design incorporates a reddish face, whilst Facebook's incorporates clinched teeth. Exhibits a range of emotions, from grumpiness and impatience to contempt and indignation may also signify someone who is rough or cruel. The term "emoji" comes from the Japanese word for image, because these faces substitute text messages. However, unlike traditional letters, which are represented by shapes, emojis are drawn using characters derived from the Chinese character set. These characters are called emoticons in English. Emojis were introduced into Android in May 2012, and have become popular since then. The original only included 14 characters, but more have been added since then. There are currently over 100 different emojis available in Android, making them one of the most extensive sets in any mobile platform. On Google+, they are used instead of writing words. For example, if you wanted to express that you are angry with someone, you would type an angry face emoji instead of writing "angry". Emoji are useful because you can express yourself better through facial expressions than through just simple words. Also, people who use smartphones and other digital devices often experience email delays, so being able to send images instead allows for a more immediate response.