"Gibberish" refers to speech or writing that is not clear or makes no sense, usually because it is spoken or written in a confusing or random way. Full definition
In case the previous paragraph is nothing but a whole lot of gibberish for you, I'll try to make things clearer. (software.informer.com)
His flaming red locks should be used to hair whip, a la Sindel, and he should also be using Fi in sword form and she can speak in gibberish as she tries to come to terms with just having sliced Kung Loa into triangles. (rustyshell.com)
The supporting cast is full of colorful and wacky characters, and each of them is brimming with personality, with gibberish as their only language. (gamingtrend.com)