bankroll /ˈbæŋk.ɹoʊl/noun 2verb 1forms 3 noun2 •A roll of banknotes or other paper currency, carried in lieu of a wallet.Phil kept his bankroll in his front pocket, as it made too much of a lump to sit on. •(figurative) The monetary assets of a person or organization.Microsoft is a corporation with an extremely large bankroll. verb1 •To fund a project; to underwrite something.Professor Stebbins didn't need to apply for government grants because his lab was bankrolled by a large pharmaceutical corporation. formsbankrolled · bankrolling · bankrolls