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Noun: bugaboo  'bú-gú,boo
Usage: N. Amer
  1. An imaginary monster used to frighten children
    - bogeyman, bugbear, boogeyman [US], booger [N. Amer], bogyman
  2. A source of concern
    "the old bugaboo of inflation still bothers them"

Derived forms: bugaboos

Type of: concern, headache, monster, vexation, worry

Encyclopedia: Bugaboo