For starters you are talking about American yeshivish, which is based on “Brooklynese” – they don’t talk like that if they were raised in Gateshead or Bnei Brak. Add in pieces of Yiddish, Israeli Hebrew and Talmudic Aramaic,including grammatical variants, syntax and vocabulary, and you get “yeshivish.”
From a linguistics perspective,it is quite fascinating.