I'd say which the term "genius" in this context is being used as an adjective, which It is far from - the adjective kind is "ingenious". "Boy genius" is idiomatically preferable, as indicated elsewhere. nautical a : an act of sailing towards the aspect or way from which the wind https://kyleruycef.life3dblog.com/35305236/everything-about-the-genius-crow-ios-vs-android-comparison