Ohayo onii-chan is a familiar Japanese phrase, combining ohayo, meaning good morning, with onii-chan, an affectionate term for an older brother, and it appears in many anime scenes where a younger sister greets her brother. Because the phrase is so common in anime dialogue, short clips of it have become popular on soundboards and in fan edits, where it works as a quick shorthand for a cute morning greeting. Its short length and instantly recognisable tone help it stay in use for morning posts, sibling jokes and anime-themed memes.