Noun swellhead has 1 sense
  1. egotist, egoist, swellhead - a conceited and self-centered person
    --1 is a kind of unpleasant person, disagreeable person
    --1 has particulars:
     bragger, braggart, boaster, blowhard, line-shooter, vaunter; egomaniac; exhibitionist, show-off; know-it-all, know-all; megalomaniac; miles gloriosus; popinjay
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