The word chunky means thick, bulky...

Tiny waists were popular in that time.

Vivid colours are very bright.

Flared trousers are wider at the bottom than at the top.

To split up means to not be together anymore.

When something is illegal, it means that forbidden by the law.

When a store shuts down, it means that it is closed.

To top the charts means that it became really popular.

To be rebellious means to not follow the rules.

To hit the shops means that new items will become available.

Jive was a very popular dance performed to swing or rock music.

Nail-biting is when you bite your nails.

Pop art is art based on popular culture.

On the cassette people had music or movies.

Instead of humble, you could use modest, meek or respectful.

When a jacket has the shoulder area lined or stuffed with soft materials, it means that it is padded.

To blast out means to produce a loud noise or music.

Devastated means to be overwhelmed by sadness or grief.

Patterned clothes are clothes decorated with a design that repeats itself.

The word psychedelic is the most associated with popular music and designs in the past century.