A public washhouse, ie washeteria, where goths without washing machines at home go to wash their clothes.
Gothdrettes only have 'dark wash' facilities, and are open from 11.55pm to 4.55am.
Lady Goth: Phew! You smell slightly. Too much petulia!
Smelly Man Goth: Yeah, I know. Sorry. I'm putting all my gear into a bin bag and going to the gotheteria at midnight.
Lay Goth: You putting in your boots??!!
Smelly Man Goth: Don't get dark. No one puts their heels in the gotheteria machines. They come out like death warmed up!