From the Personal Journal of Dr. Howard Fine:
The Whattamadoon itself is hardly a creature worth making note of, as its teeny-tiny, squishy, toothless body makes it incapable of causing any physical, temporal, or psychological harm to any living creature.
However. The Whattamadoon’s web is notorious for snatching up any thoughts blossoming and fluttering about one’s head as they pass through the doorway in which said web is hung.
Fortunately, walking back through the web often allows an unwitting buffet to recover whatever million-dollar idea I totally believe you had before the Whattamadoon can feast upon it.