HO-HUM

PRONUNCIATION: (HO-huhm)

MEANING: interjection: An expression of boredom, indifference, or resignation.
adjective: Boring; dull; routine.

ETYMOLOGY: Perhaps of imitative origin. Earliest documented use: 1924.
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HBO-HUM - what you get when your Movie channel is off the air

HOH-IUM - the element that makes water

HRH-UM - the King's Speech impediment