我是桃花侠我是菊花怪

Here '桃（tao）花（hua)侠（xia）' refers to a heroic persona like a romantic wanderer, while '菊（ju)花（hua）怪（guai）' implies more of a quirky personality. Put together, this username reflects someone who embraces both the romantic adventurous aspects and peculiar eccentricities of life.