Wiktionary
tiger mother
n. A woman who is fiercely protective of one or more people in her care. (from 20th c.)
Wikipedia
Tiger mother
Tiger mother is a term which refers to a strict or demanding mother who pushes her children to be successful in education by attaining high levels of scholastic and academic achievement, using methods regarded as typical of childrearing in East Asia, South Asia and Southeast Asia to the detriment of the child's social, physical, psychological and emotional well-being. The term is coined by Yale law professor Amy Chua in her memoir Battle Hymn of the Tiger Mother.