Have you been seeing #uoeno or u.o.e.n.o. around Twitter and Facebook recently? If you don’t know what it is, we’ve got the answer.

Made famous by rapper Rocko, the phrase uoeno is an onomatopoeia of sorts for the phrase “you don’t even know.” Say it out loud.  UOENO = “You don’t even know.” Sounds just like it, right? Okay, maybe not, but now you know what it means. So no one can look at you and say “UOENO."