Yeshivish
Yeshivish (Yiddish: ישיבֿיש), also known as Yeshiva English, Yeshivisheh Shprach, or Yeshivisheh Reid, is a sociolect of English spoken by Yeshiva students and other Jews with a strong connection to the Orthodox Yeshiva world.
"Yeshivish" may also refer to non-Hasidic Haredi Jews. Sometimes it has an extra connotation of non-Hasidic Haredi Jews educated in yeshiva and whose education made a noticeable specific cultural impact onto them. In the latter case the term has ambivalent (both positive and negative) connotations comparable to those of the term "academic".
James Lambert writes that the term may be a portmanteau word of yeshiva and English, or may simply be formed from yeshiva + the adjectival suffix -ish.