A dialectal or Scottish term meaning to gape, stare vacantly, or open the mouth wide in surprise or yawning.
From Scottish and Northern English dialect, possibly related to 'gob' (mouth) or Scandinavian roots like Old Norse 'gaup' meaning to gape or stare foolishly.
Scottish dialect preserved tons of old Norse vocabulary because of Viking settlement—'gaub' is a living fossil of language contact from over 1,000 years ago.
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