北柠故梦

'Běi níng gù mèng' translates as 'the northern dream of tangerine,' which evokes images of dreams set in northern lands or involving tangerines (called 柠檬 - lemon in Chinese but can also be a playful reference), blending the concepts of longing for the past with something specific to the person, such as a place or fruit. Thus, this nickname could symbolize nostalgia or memories of a certain period, location, event or relationship.