uwu (also stylized as “UwU” or referred to as “uwu face”) represents the shape of a happy face. It’s also known as “happy anime face.” The expression can be interpreted as being ...

If simply having a new little virtual friend on your board isn't enough whimsy for you, the UwU also has three mini-games built in. There's Long Cat (a snake clone), Fishy Blox (vaguely Tetris ...

It's not actually an acronym, but a group of letters that make a face. Examples of similar emoticons are =D, XD, and :L. It's difficult to pinpoint when exactly UwU gained prominence in texting lingo.