天冷到我怀里来手凉只让你来暖
[tiān lĕng dào wŏ huái lĭ lái shŏu liáng zhĭ ràng nĭ lái nuăn]
This nickname suggests warmth and intimacy. It literally means 'Come into my arms when it's cold, I'm the only one who can warm you up.' This implies a protective and nurturing relationship.