Swellhead is a term used to describe someone who is excessively proud of themselves and their accomplishments. It is often used to describe someone who is an egomaniac, egoist, or EGOTIST. An egomaniac is someone who has an inflated sense of self-importance and believes they are better than others. An egoist is someone who is overly concerned with their own interests and desires, often at the expense of others. An EGOTIST is someone who talks about themselves excessively and is overly focused on their own achievements. All three terms describe someone who is excessively proud of themselves and their accomplishments.