Related Clues:
- Pump, in a way
- Popped item?
- ''Pop'' test
- Prep
- It may be unwelcome when popped
- Sporcle.com feature
- Set of questions
- Facebook time-waster
- Dreaded thing when you didn't do the reading
- Thing popped in school
- Classroom surprise, sometimes
- Classroom surprise
- Test of knowledge with short questions
- Inform this not done, perhaps
- Questionable entertainment?