Ho ho ho

"Ho ho ho" is a textual rendition of a particular type of deep-throated laugh or chuckle. Most associated today with Santa Claus and Father Christmas, it was connected in the 17th century with the English mythological figure of Puck.

The laughter of Santa Claus has long been an important attribute by which the character is identified, but it also does not appear in many non-English-speaking countries. The traditional Christmas poem A Visit from St. Nicholas relates that Santa has:

. . . a little round belly
That shook when he laugh'd, like a bowl full of jelly

https://en.wikipedia.org/wiki/Ho_ho_ho