noun
maid cafe
A themed cafe where waitresses wear maid costumes and treat customers as masters/mistresses. Originated in Akihabara; now a well-known subculture phenomenon.
See also: メイド喫茶
秋葉原で初めてメイドカフェに行った。
I went to a maid cafe for the first time in Akihabara.
メイドカフェでは、店員が「お帰りなさいませ、ご主人様」と言っ
At a maid cafe, the staff greet you with 'Welcome home, master.'
Synonym; メイド喫茶 is slightly older and less common now, but refers to the same concept.
Wasei-eigo (Japanese-made English) from 'maid' + 'cafe'. The concept emerged in the early 2000s in Akihabara.