I heard a native English speaker saying
pop it into the bin meaning throw something in the trash bin.
1. Is it a proper English adult and children should pick up?
2. Any other ways in using pop...into in common use?
go to the loo for going to the washroom.
3. Is it a proper English adult and children should pick up.
4. Is I want to go to the loo in proper English structure?
5. Are the above questions in right structure?