you ain't seen nothing yet

== English == === Etymology === From you ain't heard nothing yet, a phrase originally popularized by Al Jolson. === Phrase === you ain't seen nothing yet (colloquial) There's more where that came from; what you have seen so far is only the beginning. Used to inform the listener that they should expect further surprises, and that the speaker has only just begun doing something. (colloquial) You haven't seen everything yet === References === Pascal Tréguer (2 February 2019), “Meaning and Origin of ‘you ain’t seen/heard nothing yet’”, in wordhistories.net‎[2]: “With one exception [...], the earliest instances of you ain’t seen nothing yet are posterior to those of you ain’t heard nothing yet—which may indicate that the former phrase gained currency as an alteration of the latter.”