Noble Gas Share definition Flag Derived from science, noble gas has come to mean anything boring, lame, unreactive, or discrete. Jane: Yesterday, I told my husband our baby was a hermaphrodite, and he didn't even blink. Jenny: He's such a noble gas. Noble Gas by Tortazo April 3, 2009 0 0 Get merch Get the Noble Gas mug. Buy Now — $32.95 See more merch