Definition:
Act agressively and ruthlessly to achieve a goal
Examples:
Their lawyers decided to play hardball, so they may delay payment until we sign this new contract.
I don’t like it when he plays hardball in the negotiations; it makes it difficult for us to come to an agreement.
Source:
Using idioms in conversation demonstrates mastery of a foreign language. Idioms in English shows you how to use stress to pronounce an idiom in a sentence like a native speaker.
