The phrase combines Russian and Ukrainian slang, with pizditi meaning to talk nonsense or bullshit, so the line is understood across both languages as a rude, funny shut-down. It circulates mainly as one of many short WhatsApp audios forwarded between friends rather than from a known film or show, passed around for its blunt tone and named target. Because Sergey is a common name, the clip also works as a generic joke for any Sergey in a chat, and its brevity keeps it reusable as a reaction.