Definition of lowballing in US English:

lowballing

noun

  • See lowball

    • ‘They're using lowballing as an excuse to justify their own failure to show.’
    • ‘We'll need evidence to support the claims of progress and estimates, not just someone's word; we remember the administration's claims about weapons of mass destruction and its lowballing of the war's cost in money and troops.’
    • ‘That session was my introduction to the ‘island scale,’ Hawaii's traditional policy of lowballing wave heights.’