the GNU version of the Collaborative International Dictionary of English
n. A specter; a hobgoblin; a bugbear.
The Century Dictionary and Cyclopedia
n. The devil: often as a quasi-proper name, and usually with an epithet (in this use with a capital): as, Old Bogy.
n. A hobgoblin; a bugbear.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an evil spirit
n. an unidentified (and possibly enemy) aircraft
Word Usage
"Bugaboo is from the archaic term bogy boo -- a term for a hobgoblin or anything that haunts, bothers, bugs, harasses, irks, annoys, or frightens, like the bogeyman."