n. 妖怪, 可怕的人(物)

Bogy \Bo"gy\, n.; pl. {Bogies}. [See {Bogle}.]
A specter; a hobgoblin; a bugbear. ``Death's heads and
bogies.'' --J. H. Newman. [Written also {bogey}.]

There are plenty of such foolish attempts at playing
bogy in the history of savages. --C. Kingsley.

Bogey \Bo"gey\, n.; pl. {Bogeys}. [Also {bogie} and {bogy},
plural {bogies}.]
1. A goblin; a bugbear.

Syn: bogeyman.
[Webster 1913 Suppl.]

I have become a sort of bogey -- a kill-joy. --Wm.
Black.
[Webster 1913 Suppl.]

2. (Golf) a score one stroke over par for a hole; formerly,
the definition of bogey was the same as that now used for
{par}, i.e., an ideal score or number of strokes, for each
hole, against which players compete; -- it was said to be
so called because assumed to be the score of an imaginary
first-rate player called Colonel Bogey. Now the standard
score is called {par}.
[Webster 1913 Suppl. +PJC]

3. (Mil.) an unidentified aircraft; in combat situations,
such craft not identified as friendly are assumed to be
hostile.
[PJC]