ha haPronunciation: /hɑːˈhɑː/ (also he he)Definition of ha ha exclamation used to represent laughter: ‘Oh ha ha, very funny,’ I said ‘I know you!’ he said. ‘He he,’ she chuckled. ‘Do you?’Origin:natural utterance: first recorded in Old English (compare with ha1)ha ha in other Oxford dictionaries Definition of ha ha in the US English dictionary