Butterfingers refer to a clumsy person, especially one who tends to drop things. During the World Cup, the term refers ironically to those clumsy goalkeepers prone to let shots slip through their hands as if they had applied butter to their fingers.

“黄油手”指笨手笨脚、手里拿东西很容易掉的人。世界杯期间，“黄油手”则指那些扑住了对方进球却又让球从手中溜进球门的守门员，就好像他们手上抹了黄油似的。

For example:

England goalkeeper Robert Green dominated the headlines as a "butterfingers" after his fumble against the USA in the group rounds.

小组赛阶段，英格兰门将罗伯特•格林因其“黄油手”失球而占据了各大报刊的头条。