This is the no-nonsense boss who supervises Fred Flintstone and Barney Rubble.
Answer Mr. Slate
Mr. Slate was the boss of both Fred Flintstone and Barney Rubble. The prehistoric friends frequently butted heads with this strict and hot-headed boss, which often resulted in humorous situations.
Asked by Jennifer Sinclair · Last updated 5 years ago · 15.7K views · SOURCE
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