Triste, word by word: This [is] simply something. "Simply" here means "just", and "something" is used as here: https://en.wiktionary.org/wiki/something 4. (colloquial, often with really or quite) Somebody or something who is superlative in some way. He's really something! I've never heard such a great voice. She's quite something. I can't believe she would do such a mean thing. Periods after each word mean: the speaker so overwhelmed/surprised that she/he stops after every word.

It’s mean “This. Is. Amazing.” Or “this is awesome”

Actually word by the word means that ”this simply nothing”. And have different meanings in different cases for example ” your welcome” and ”nothing happens” and ” it's simple”

Something like "This is wow!"

You are welcome!😂