Someone stuck gum under the teacher's desk, and now the whole class has to stay behind until he finds out who.

What does Someone stuck gum under the teacher's desk, and now the whole class has to stay behind until he finds out who. mean?

Someone stuck gum under the teacher's desk, and now the whole class has to stay behind until he finds out who.

Someone stuck gum under the teacher's desk, and now the whole class has to stay behind until he finds out who. in other languages