have a swelled head

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have a swelled head

To be conceited, arrogant, or self-aggrandizing. Cheryl has such a big head on her, all she ever talks about is herself. Janice has had a bit of a big head ever since she got that promotion.
See also: have, head, swell

*swelled head

Fig. a state of being conceited. (Typically: get ~; have ~; give someone ~.) John got a swelled head after he won the prize. Don't get a swelled head from all this success.
See also: head, swell

swelled head, have a

Be conceited, as in Winning all those prizes has not given her a swelled head, at least not yet. This idiom began as be swellheaded, first recorded in 1817. The present form dates from about 1860. For a synonym see big head.
See also: have, swell

swelled head, to have a

To be conceited. The image conveyed is that of having one’s self-importance augment one’s head size. The term dates from the nineteenth century. J. J. Cooper used it with appropriate disgust (Simon Suggs’ Adventures, 1845): “They’re all a pack of d——d swell-heads.”
See also: have, swell