n., pl., -boos.
- An object of obsessive, usually exaggerated fear or anxiety: "Boredom, laziness and failure . . . These bugaboos, magnified by imagination, keep [the workaholic] running" (Dun's Review).
- A recurring or persistent problem: "the bugaboos that have plagued vision systems: high price and slow throughput" (Lawrence A. Goshorn).
[Perhaps of Celtic origin.]





