Ego trip and Self-importance

Ego trip noun - An act undertaken to increase your own power and influence or to draw attention to your own importance.

Self-importance and ego trip are semantically related. In some cases you can use "Self-importance" instead a noun phrase "Ego trip".

Self-importance noun - An exaggerated sense of one's importance that shows itself in the making of excessive or unjustified claims.

Ego trip and self-importance are semantically related. Sometimes you can use "Ego trip" instead a noun phrase "Self-importance".