spend lavishly angļu valodā:

When I went shopping with Claire, I was shocked by her extravagance.

Such extravagance is beyond my reach.

the Empire spread, corruption and extravagance took over.

Although I modified this extravagance later by including the beautiful life among the works of art that alone gave a meaning to life, it was still beauty that I valued.

Taking weekly trips to Vegas, Megan was a spendthrift whose excesses eventually caught up to her.

Ben spent all his birthday money in one hour, he's such as spendthrift.