低吟花非花的格調
[dī yín huā fēi huā de gé diào]
This phrase translates roughly to the style (manner) of quietly chanting the paradoxical poem "Flower Is Not Flower." The latter comes from Bai Juyi’s Song of Pipa, describing something that appears like what it should be on the surface (a flower), yet fundamentally different when examined more closely. As a nickname, this could suggest the individual's preference or habit for contemplating profound yet ambiguous philosophical ideas in low voice or solitude, appreciating beauty through deeper layers of meanings rather than surface-level expressions.