The phrase is a colloquial Russian request, using the familiar short form Lyokh for a friend and a slang version of 'say something'. Clips built around everyday spoken prompts like this spread on soundboards and in messaging apps because they are short, recognisable and easy to reuse out of context. It has become a small reaction staple among Russian-speaking users who share voice memes, where the humour comes from the everyday tone rather than a known film, show or celebrity source.