brain up
v.— «Mr Saumarez Smith, a former academic, believes the answer is not to dumb down, “as the Department for Culture Media and Sport would sometimes seem to like us to do”, but to “brain up.”» —“Museums ‘must brain up to appeal’” by Angelique Chrisafis Guardian (U.K.) Aug. 10, 2002. (source: Double-Tongued Dictionary)
Further reading
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