Very angry indeed.

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1675.  I us’d to make him hopping mad.—Cotton, ‘The Scoffer Scoft,’ p. 52. (N.E.D.)

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1856.  She thought Liddy Ann Buill was tew old to wear plumes…. She was hoppin’ mad about it…. It led to an awful quarrel that ain’t made up yet.—Whitcher, ‘The Widow Bedott Papers,’ No. 24.

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