◆杓子定規 Shakushi-jougi.
- 解釈：他に当てはまらない基準を設けて、無理に当てはめること。また、形式に捉われて応用融通の利かないこと。
- Literal：A dipper is used as ruler.
- Interpretation：It is carrying out a curved dipper instead of ruler. Inflexible. It is applying all the things to one standard or rule, and dealing with them.
- 類義：