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 prone¹ to let shots slip through their hands as if they had applied² 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 fumble³ 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。