swanky          
adjective uk/ˈswæŋ.ki/ us/ˈswæŋ.ki/
 informal (US also swank)时髦而奢华的 
very expensive and fashionable, in a way that is intended to attract people's attention and admiration
  We stayed in a swanky hotel. 我们住在一家奢华的酒店。 
  UK disapproving自负的,夸耀的,卖弄的 
behaving too confidently
  I'm sick of his swanky talk. 我讨厌他自吹自擂。