心藏娇猫心有猛虎
[xīn zàng jiāo māo xīn yŏu mĕng hŭ]
The meaning behind this nickname is 'a gentle kitten in one’s heart, a tiger also resides there'. This reflects two different traits in one character. A gentle and delicate side is hidden deep inside, yet the person also has fierce, wild side and can be brave in facing challenges.