OMG OMG OMG n. prounounced: Oh-em-jee-oh-em-jee-oh-em-jee. Said by overly exited millenials, mainly girls, but guys can say it too, because I don't want tooffend anyone.
When you break into someones house and they come home and you don't know what to say. Just say OMG OMG OMG LOLOLOLOLOLOLOLOLOLOLOL. Then repeat it. Then all is good and you might even have a girlfriend/boyfriend because your so cool.