Why does Batman only Giggle not talk in Teen Titans Go! French Clown comedy? Cirque du Soleil ? ?

In the TV show Teen Titans GO! ( not to be confused with the original teen titans from the early 2,000), Batman does not talk rather just Giggles at everything in a non-human sounding stupid laugh. I do not understand the reference and in fact the closest thing I have ever seen to it was this French Canadian Cirque du Soleil style clown humor with a whistle 


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So whats the deal with batman in teen Titans Go! what is this comedy style? 

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