拍馬屁|butter up

butter是奶油，阿諛奉承的話聽起來就像麵包塗上奶油一樣滑順，因此，用花言巧語討好某人，藉此獲得好處，可以說butter up。

相關字

1. flattery [ˋflætərɪ] 奉承
2. soft-soap ['sɒftsoʊp]諂媚
3. form a clique 搞小團體

例句

1. He is working hard to butter up the boss to get a promotion.
   他為了獲得拔擢，正想方設法地討好老闆。

2. To butter someone up is to be really nice to him so that you can ask him for something.
   奉承某人就是為了要求好處而巴結對方。