I. interjection Etymology: Middle English, from Old English ha ha Date: before 12th century — used to express amusement or derision II. noun Etymology: French haha Date: 1749 sunk fence
HA-HA
Meaning of HA-HA in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012