expression, godan verb (-su)
spare no expense; live extravagantly; indulge in luxury
Used when someone spends lavishly or enjoys the finest things without restraint. Often implies a deliberate pursuit of luxury.
彼は新居に贅を尽くした。
He spared no expense on his new house.
このホテルは贅を尽くした内装で知られている
This hotel is known for its lavishly appointed interior.