noun, plural Hak·kas, (especially collectively) Hak·ka for 1.
Examples from the Web for hakka
Their intelligence is great, and many noted scholars have been of Hakka birth.
"Hakka kado me no tonga, lakka prada estig ferente," rejoined Hal Overton, with a grin.Uncle Sam's Boys in the Philippines|H. Irving Hancock
Hung Sin-tsuan, the leader in the Taiping rebellion, was a Hakka.
A Hakka charcoal-burner once found three of the children playing in his tobacco-box.Myths and Legends of China|E. T. C. Werner