D'ya-no! Share definition Flag It is a word of disbelief, exasperation, flippancy and damn right speechlessness. Always said in a condescending way with an exclamation mark. Laura says 'what time is my train tomorrow?'Answer 'd'ya-no! how many times have you asked that?!' D'ya-no! by muffet June 25, 2014 0 0 Get merch Get the D'ya-no! mug. Buy Now — $32.95 See more merch