This is not a euphamism popularmechanics.com

Scientists have found a previously undiscovered organ deep inside the human head, where the nasal passages meet the back of the throat. Yes, the news is an extraordinary-sounding surprise, but the researchers say the discovery is likely a fourth pair of salivary glands—not a second brain or transistor radio. If the findings are confirmed, this will be the first discovery of a new human organ in around 300 years.