DCHP-1 Online
One Big Union Esp. West 
a labor organization formed at Calgary in 1919 on an industrial rather than a craft basis; also, a member of this organization. Abbrev. O.B.U.
See also: O.B.U.
- c1921 You may say: "Well, if I join the One Big Union, I can't get a job. I can't hold my job, for the boss don't want O.B.U.'s"
- 1963 In the western provinces a radical industrial union took shape, the Canadian One Big Union, or O.B.U.
- c1921 You may say: "Well, if I join the One Big Union, I can't get a job. I can't hold my job, for the boss don't want O.B.U.'s"