diddly-squat

My brother says he knows diddly-squat about fixing computers, so he called a technician.

用法提示：diddly-squat 在此作 know 的宾语，名词用法，加强否定语气，表示‘一点也不懂’。

We waited for two hours, but we heard diddly-squat from the manager about the delay.

用法提示：diddly-squat 作 heard 的宾语，名词用法，与否定结构连用表示‘什么也没’。

He did diddly-squat all weekend and still complained he was tired.

用法提示：diddly-squat 作 did 的宾语，名词用法，表示‘什么都没做’。