That's my problem too, the auther probably doesn't have the sound file from the episode, and is merging a single line of "Giggity" into another single sound line, making a chaing if Gig, without the Ity, and the Goo. Also, the problem is also probably that it is overlapping. I think you mean that there's no delay between Giggities.

the overlapping is not a problem
for me instead of the same sound that overlaps one another, it just goes like gigigigigigigigigigigigigigigigigigigigigigigigigigigigi and so on

That's what I meant. There's no delay, so the sound file plays over it's self (hence- overlapping.)