(chiefly, US, transitive) To soil or mess up (an area, etc.) with hair.
“Thank heaven, we’ve had a fire in [the parlor] today,” she thought, “and all I hope is That Cat hasn’t haired up the sofa. If Sarah Pringle got cat hairs on her dress ”
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(US, intransitive) To grow (more) hair.
“I’m foolish to be roaming around this time of night like an old cat, haired up by the wind. ”
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(US, transitive) To cause the fur of (an animal) to puff up or stand on end.
a cat standing so tall and haired up it was the size of a bushel basket
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