set one's hair on fire

English dictionary entry

Meanings

verb
  1. To become wildly impassioned; to behave crazily.

Pronunciation

En-au-set one's hair on fire.ogg

Word forms

set one's hair on fire sets one's hair on fire setting one's hair on fire light one's hair on fire run around with one's hair on fire

Etymology

Possibly from stories of Viking marauders said to have set their hair and beards on fire when running into battle in order to appear fanatical and fearsome.

Synonyms

Derived words

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