fat finger         
noun [ U ] informalUK uk/ˌfæt ˈfɪŋ.ɡər/ us/ˌfæt ˈfɪŋ.ɡɚ/
 胖手指综合症(使用计算机键盘时意外敲错键)
a situation in which you press the wrong button by accident when you are using a computer keyboard
 fat-finger
verb [ T ] informalUK ukus
 (使用计算机键盘时)意外敲错键
to press the wrong button by accident when you are using a computer keyboard
  I thought the computer wasn't working but I must have fat-fingered my password. 我原本以为电脑坏了,其实肯定是我输错了密码。