おごogoruおごogoru
1.

To become arrogant or overconfident due to having power or privilege, leading to a disregard for others and a loss of humility in one’s actions.

2.

To boast about one's abilities, lineage, or status, often resulting in self-indulgent behaviors that neglect the feelings or opinions of others.

Example:

驕れる者は久しからず。