Who invited this kid has become a familiar online catchphrase for calling out someone who feels out of place, and short reaction clips built around it circulate widely in meme edits, gaming videos and short-form content. Creators use the line as a quick shorthand for social awkwardness, dropping it over party footage, streams and unexpected cameos where the humour comes from the mismatch. Because the phrase is instantly understood without context, it keeps resurfacing whenever a new awkward guest moment goes viral.