"gigglible" Is that even a word?
{{opens dictionary}}
"C"... "D"... "H"... ((oops... too far) "G"... "G-I"... "Giblet"... "Gigawatt"... AH HA!...
"Giggle:
intransitive verb:
to laugh with repeated short catches of the breath
transitive verb:
to utter with a giggle"
"Giggled, Giggling, Giggler, Gigglingly, and Giggly... Nope. No 'Gigglible'"

But I like it all the same. LOL