With no clear single source attached to this clip, its life online is driven by the title itself. Arithmetic progression is a familiar school maths idea, so creators reuse the phrase as shorthand for anything that keeps increasing step by step, from scores and prices to repeated jokes. On soundboards it sits alongside other short reaction and meme clips, ready to drop into edits where a pattern needs a label. That flexibility keeps it useful: it is recognisable without needing a specific show, character or viral video behind it.