内申ないしん
naishin

Noun
Suru Verb

1. unofficial report; confidential report

Transitive
サボったりしたら・・・、内申ないしんひびいてもおかしくないとおもいませんか?
sabottari shitara...naishinni hibiitemo okashikunaito omoimasenka
If you cut class or something...it wouldn't surprise you if it showed up on your report card, would it?