Knockoff (noun)

A cheaper or lower quality version of a product, typically one that is made to look similar to the original but without permission or authorization.

Origin:

From the phrase knock off, which means to make a copy of something, usually in a cheaper or lower quality manner.

Examples:

1. He bought a knockoff of the designer handbag.
2. The knockoff of the famous painting was difficult to tell apart from the original.
3. The knockoff watch looked almost identical to the real one, but it was much cheaper.
4. The knockoff shoes were made of cheaper materials and didn't last as long.
5. He was caught selling knockoff designer merchandise in his store.