stinking to high heaven

If someone is stinking to high heaven or something is stinking to high heaven, it means that something is deemed very wrong with poor morals and usually enormously corrupt practices. It might also be a way to exaggerate the persons indignation and also applies to less severe offenses. High heaven the phrase does not refer to heaven but means the sky, which is another way to show the severity of how something stinks in the figurative sense.