kaihui
A woman so strong she could probably beat a bear with her bare hands. She’s also the kind of person who would fail you if you didn’t do your homework.
My teacher called me a kaihui because I passed the test but forgot to do my homework.
That girl in my class is a kaihui. She beat up the principal and still got straight A's.
My cousin is a kaihui. He passed the exam and then got in trouble for eating pizza during the test.