Bugaboo (The Flea)
WordNet

noun


(1)   A source of concern
"The old bugaboo of inflation still bothers them"
(2)   An imaginary monster used to frighten children
WiktionaryText

Noun


  1. An imagined fear or threat, or a fear presumed larger than it really is.
    ...a fear had come upon them, and they had a kind of bug-a-boo terror about roving gangsters.
 
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