Popular until the 1960s, the conk hair style was achieved through the application of a painful lye, egg and potato mixture that was toxic and immediately burned the scalp.
The conks were once collected extensively for production of medicinal quinine, which they were thought to contain, because of the bitter taste of the powdered conk.
The bulldog is conked by a falling anvil, and ends up swallowing the whistle, triggering a case of the hiccups, each one of which causes the whistle to go off.
