To be so passionate in one's musical conducting as to raise and hold both arms in the air whilst clenching all ten fingers with much vigor, usually during a prolonged fermata. Named for the legendary Dr. Peter Boonshaft.
Despite weeks of meticulous planning for Black Friday, a hapless Marquavias was seduced by a flat screen tv so large that it even exceeded his vast boonspan.
His greed and lust for crime, left him empty handed as he was caught red handed with incompatible surround stink speakers’.