barnacle
/ˈbɑrnəkəl/Definitions
1. noun
A marine animal that attaches itself to a rock or ship’s hull and feeds on plankton or small organisms.
“The ship’s hull was covered in barnacles that had accumulated over several months.”
2. noun
A person or thing that is difficult to remove or get rid of.
“He had become a barnacle in the company, always causing problems and difficult to fire.”
3. verb
To attach or be attached to something in a difficult or permanent way.
“The company has been barnacled to the government contract for years.”