In Thai gaming slang, 'สายเติม' (sai tem) means players who spend real money topping up in games, as opposed to 'สายฟรี' free-to-play players — and this clip turned the phrase into a running joke on Thai TikTok. The exact original creator is not documented, but the audio spread through POV memes where someone gets called out for spending, or proudly defends their free-to-play pride. Its humor comes from a tension every mobile gamer recognizes: games keep dangling tempting banners and skins, and refusing to top up feels like a losing battle.