Dou Dou means "go round" (兜兜). It can also mean "pocket, bag, solicit, move round, canvass, take a responsibility, take upon oneself" (兜) (dou) and "pocket, bag, solicit, move round, canvass, take a responsibility, take upon oneself" (兜) (dou) separately.
Gu Li, Soul Land Wiki
Heaven Dou Imperial Household Hunting Grounds, Soul Land Wiki
Luo Shuiyun, Soul Land Wiki
Qian Daoliu, Soul Land Wiki
Wolftaken, Soul Land Wiki
Tian Yang, Soul Land Wiki
Jin Miaosen, Soul Land Wiki
Sea Woman Douluo, Soul Land Wiki
Poseidon, Soul Land Wiki