Selamun aleykum is the Turkish form of the Arabic greeting as-salamu alaykum, a traditional Islamic salutation used in daily life for centuries. Online, elongated versions of the phrase became popular as short soundboard clips and greenscreen edits, where the stretched final sound is the joke. Turkish sound effect channels helped circulate this style of clip, and creators now reuse it as a light hearted hello in memes, short videos and message replies, keeping the original respectful meaning while playing up the timing.