What is hall pass meaning?

The term "hall pass" refers to a permission slip given to students, usually by a teacher or school administrator, which allows them to leave their classroom and move freely around the school. Generally, students need to have a specific reason for leaving their class such as using the restroom, visiting the nurse, or attending the library. Hall passes help teachers keep track of their students' whereabouts and ensure that they are not missing class without a valid reason. In some cases, the term "hall pass" can also refer to a humorous or playful reference to using the restroom as a substitute for sex.