Old-boyism

And they serve it up with a powerful seasoning of old-boyism and arbitrary clique preference as between white males.

Source: wiktionary

A recent president of the International Association of Police Chiefs, an organization regarded almost universally as a bastion of 'old-boyism,' was the female chief of police of Gaithersburg, Maryland.

Source: wiktionary

The latter are characteristically few in number, and they reciprocate government old-boyism and good-old-boyism with heart-warmineg liberal donations to conservative causes — electoral and otherwise.

Source: wiktionary