an act or course of action undertaken primarily to satisfy one's vanity or for self-gratification: Her charitable activity was one long ego trip.
Pronunciation: (ē'gō trip", eg'ō-), [key]
—v.i., -tripped, -trip•ping. Informal.
to behave in a self-serving manner.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.