noun
business discussion; negotiation
Refers to formal or semi-formal talk about business matters, often with a nuance of negotiation or deal-making. Wasei-eigo; not used for casual small talk.
wasei-eigo (Japanese-coined English), from business talk
今日のビジネストークは契約の詳細についてだった。
Today's business discussion was about the details of the contract.
彼
He is good at business talk and quickly persuades the other party.
noun
frank discussion
A less common, extended meaning where the talk is direct and open, often about serious matters. Not as widely used as sense 1.
上司とビジネストークをして、本音で話し合った。
I had a frank discussion with my boss and spoke honestly.