Any undertaking that exists only to justify its own existence rather than to serve a productive purpose.
The government school has become a self-eating watermelon that exists to "socialize" the student so he can co-exist with other students in the government school.
by Luther Setzer November 21, 2008
A process or organization with little value or function other than to support its own existence. Similar to a self licking ice-cream cone (see spinnish )
The Orlando Expressway Authority's advertising budget just goes to prove what a self eating watermelon it's become
by jondrew December 11, 2010