i.e. mazel tov, lit. meaning "good fortune" in Hebrew and Yiddish. Jewish people use this expression to congratulate each other when something good happens, meaning something like good for you, well done, or congratulations.

what turd burglars say to sound cool, when in fact they are just using internet-one-hit-wonder-buzz-words which ultimately are without meaning, in a lame attempt to confuse their peers.