Some words primarily used in Yeshivish include: Mamesh, Takeh, Gevaldig, Geshmak.
Yeshivishe means of or pertaining to Yeshiva culture. A classic example of this is a Yeshivish car. This means a car driven by somebody who attends Yeshiva and typically drives a jalopy as nobody expects anybody from a Yeshiva to be able to afford better.