Back In High School...
A popular
milestone in a person's life, during a time when they were a teenager. This phrase is used to show a
contrast between back when you were a teenager, and now,
presumably as an adult. It's also commonly used by an adult or older person to show how things are different from a person currently in high school.
Back in high school...I had to walk 10
miles to school, and have at least 5 hours of homework every night. It wasn't like today where kids have their own cars and have
tutors.