n. & v. colloq.
n. 1 a person in charge; an employer, manager, or overseer. 2 US a person who controls or dominates a political organization.
v.tr. 1 (usu. foll. by about, around) treat domineeringly; give constant peremptory orders to. 2 be the master or manager of.
[ orig. US: f. Du. baas master ]