Neutral:
* High-roller: This implies someone who enjoys lavish spending and often gambles big.
* Big spender: This is a simple, straightforward term for someone who spends a lot of money.
* Lavish: This describes someone who enjoys luxury and extravagance.
Negative:
* Show-off: This implies someone who spends extravagantly to impress others and is often seen as ostentatious.
* Gold-digger: This implies someone who is interested in a partner primarily for their money.
* Materialistic: This describes someone who is obsessed with material possessions.
* Champagne socialist: This term is used sarcastically to describe someone who is wealthy but claims to be on the side of the working class.
Positive:
* Fashionista: This implies someone who is stylish and enjoys spending money on fashion.
* Socialite: This describes someone who is wealthy and enjoys a luxurious lifestyle.
Humorous:
* Diamond-encrusted diva: This is a playful way to describe someone who is incredibly extravagant.
* High-maintenance: This is a humorous way to describe someone who demands a lot of attention and luxury.
Ultimately, the best term to use will depend on the context and the speaker's intention.