sell on


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sell someone on something

to convince someone to do something; to convince someone to accept an idea. Mary sold me on ordering pizza for dinner. John sold Anne on switching long-distance phone companies.
See also: on, sell

sell on

v.
To persuade someone to recognize the worth or desirability of something: They sold me on the usefulness of their new products, so I invested in their company.
See also: on, sell