Dcuniverse

3 clues
Where Batman and Superman live
Home to Gotham City, Metropolis, etc.
Where Harley Quinn and the Joker frolic
Similar answers:
Acesonnetverses
Adverse
Adverseform
Adversely
Adverseness
Alternateuniverse
Anyeweverse
Anyweeverse
Autoreverse
Averse
Aversely
Averseness
Averseto
Aversetoexercise
Baconverses
Basteoverseas
Bendtheuniverse
Blankuniverse
Blankverse
Blankversewriter