ho ho ho.

Headword: 
ho ho ho.
Principal English Translation: 

the sound of the laughter of someone who is laughing (see Molina) (an onomatopoetic word)

Alonso de Molina: 

ho ho ho. ha ha ha, del que se rie.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 30v. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

The equivalent of ha ha ha.

Attestations from sources in Spanish: 

El equivalente a ja ja ja.