Suji o tōsu (筋を通す): to run the line through. To give a matter its correct line, as in hanashi no suji o tōsu, to keep a discussion on its proper line.
Sujichigai (筋違い): off the line. Against reason, or aimed at the wrong place, as in watashi ni kujō o iu no wa sujichigai da, complaining to me is the wrong address.
Atamagoshi (頭越し): over the head. An example from a bilingual dictionary: kare wa kachō no atamagoshi ni chokusetsu shachō ni sono teian o motte itta, he took the proposal straight to the president, over the section chief’s head.