On the children's television show Sesame Street, Bert and Ernie are iconic characters. Ernie has a distinctive laugh.
I would not call it a "deep belly laugh." That laugh I would write as "Ha ha ha!"
I would not call it a "giggle." That laugh I would write as "hee hee hee!"
Is there a term that captures the kind of laugh that Ernie has?
I'm looking for the right word to use in a sentence like this:
Earnest gave his distinctive laugh, a ________________. "Heh heh heh heh heh."
For those not familiar with Ernie's laugh, I have included a link to a Youtube compilation of scenes where he laughs, eighteen seconds long.
Note: This doesn't have to be a single word. A phrase comparable to "belly laugh" would fit.