Sell somebody on something

Meaning:

• To persuade someone to buy something or give support to an idea.

Example sentence:

You don't need to sell me on the idea that we need a new computer because I know we don't. We bought two laptops last month.


Questions for you to answer:

1. Have you ever been completely sold on an idea?
2. In what professions must people be good at selling others on various ideas?
3. Can you resist when somebody is trying to sell you on an idea?