Wiktionary
power-trip
vb. To engage in a power trip.
Usage examples of "power-trip".
Andy discovered it was one thing to remember Pynchot's arrogance, the little-Caesar , power-tripping of a small man who had no real power.
It seemed to me that his wanderings had robbed him of guile, of all predilection for power-tripping, and had left him a worldly innocent.