Answer: heehee

AnswerCrossword Clue
HEEHEE

"Pretty funny!"

HEEHEE

Chuckling sound

HEEHEE

Munchkinlike laugh

HEEHEE
Facetious laugh
HEEHEE
Gleeful giggle
HEEHEETitter
HEEHEETittering sound
HEEHEESound of a foolish giggle.
HEEHEEGiggler's sound
HEEHEEImpish expression of delight
HEEHEEGiggle
HEEHEESneaky laugh
HEEHEEThat's a laugh
HEEHEEGiggly outburst
HEEHEE[Look what I got away with!]