A "mixed dorm" is a type of accommodation where both males and females, or people of different genders, stay together in the same room or shared space.
Sentences with «mixed dorm»
I was supposed to stay in a 6 bed mixed dorm room. (misticcafe.com)
They have 30 beds in mixed dorm rooms and 3 private rooms with ocean views. (sanpedrohostel.com)