What is Saieese?
1.
The language, communicated by Sai, that consists of gestures used to signify something (four splayed fingers mean "blue"), noises used in place of words, symbols, facial expressions, newly-created words (such as "mamble"), and distorted words (like "peeja").
Yes, "Saieese" does have four vowels in a row, but so does "onomatopoeia."