Meaning

noun an evil spirit

noun (golf) a score of one stroke over par on a hole

noun an unidentified (and possibly enemy) aircraft

originProbably related to or alteration of bogle, akin to or from a variant of Middle English bugge (“frightening specter, scarecrow”) (whence bug), itself of uncertain origin: perhaps from obsolete Welsh bwg (“ghost, hobgoblin”); compare Welsh bwgwl (“threat”, older “fear”), Irish bagairt (“threat”), but perhaps the root was borrowed from Germanic. Otherwise from Proto-Germanic *bugja- (“swollen up,…

Etymology from Wiktionary, CC BY-SA 3.0