A tittering laugh (3-3)

I believe the answer is:

tee-hee

'a tittering laugh' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for tee-hee that I've seen before include "Derisive giggle" , "laughing sound" , "Sound of a titter" , "Titter, giggle" , "A tittering laugh" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.