Definition of mean business in English:

mean business

Be in earnest: the border is sealed by troops who mean business
More example sentences
  • When it came to books, Ms. Hensley meant business.
  • Well, it didn't take long for us to realize they meant business, and they started clearing stuff up right away.
  • He thought we were playing some sort of silly joke on him, but we meant business.
See parent entry: mean

Definition of mean business in:

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Pronunciation: ˌəʊlɪˈadʒɪnəs
rich in, covered with, or producing oil; oily