Shlan is a word to describe a noun (person, place, or thing). It can also be used instead of a noun. It means whatever you want/need it to mean in context to the situation. It can also be used to add emphasis to a description or used instead of words (such as swear words). It is the shortened version of the Word shlanpoofah, which means the same thing but is used in more extreme situations and adds more emphasis.
by Bibb L. July 27, 2018