This smell arises when an abstraction exists that has not been completely decomposed, and a further decomposition could reduce its size, implementation complexity, or both.
Related smells: Large Class God Class The Blob Swiss Army Knife Too Large Packages/Subsystems
The following set of tools detects this smell: Designite(for C#) DesigniteJava(for Java)
G. Suryanarayana, G. Samarthyam, T. Sharma, “Refactoring for Software Design Smells: Managing Technical Debt”. Morgan Kaufmann, 2014.