BOOJUM

PRONUNCIATION: (BOO-juhm)

MEANING: noun: An imaginary or elusive goal whose pursuit may lead to ruin.

ETYMOLOGY: After an imaginary animal in Lewis Carroll’s poem “The Hunting of the Snark”. In the poem, the Boojum is a particularly dangerous type of Snark, whose sudden appearance causes the hunter to “softly and suddenly vanish away”. Earliest documented use: 1876.
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"BOO!" (jump) - line and stage directions from a grade-school Halloween play

BOOK 'UM - Detective Steve McGarrett's instructions to Sergeant Danny Williams in the old TV show Hawaii 5-0

BOO JAM - a popular confiture made from boo-berries

BOO...RUM! - When you say in Bermuda when they give you a Swizzle and what you really wanted was fine single malt Scotch