L.O.M.B.A.R.D.
A person who has money but no idea how to use it without being a total pain in the ass.
He bought a Lamborghini but still yelled at the driver for not driving fast enough.
He gave me a $100 gift card but still said my favorite store was 'too basic for him'.
He paid for my party but still called my cake 'a sad excuse for dessert'.