fat-fingered       
adjective  informal uk/ˌfæt ˈfɪŋ.ɡəd/ us/ˌfæt ˈfɪŋ.ɡɚd/
 (使用计算机键盘时)意外敲错键的
involving pressing the wrong button by accident when you are using a computer keyboard, or used to describe someone who does this
  fat-fingered office workers 意外按错键的办公室工作人员 
 A fat-fingered trader brought chaos to the market. 一个意外按错键的交易员给市场带来了混乱。 
 See: fat finger
 - More examples
 - Unfortunately the fat-fingered buyer had hit the wrong buttons on his computer keypad, before clicking the send button.
 - Perhaps it was just a fat-fingered mistake.
 - Call me fat-fingered or old fashioned, I’ve never gotten used to typing on a smartphone.