Oh yeah ! Erlebnis
the oh yeah ! Erlebnis is a Newspeech variant term on the existing a-ha Erlebnis term and phenomenon, which means the same as the Greko based Eureka moment:
suddenly a light goes burning giving you the solution to an issue that was bothering you for a long time...
the Oh Yeah ! Erlebnis is an expansion of that.
Another term, leurika moment, combining leukos; milk, suddenly making mashes mix better, than just water...