When someone uses social media to announce to the world they are drunk, when clearly they are not. Tell tale signs of "Internet drunk" are perfect grammar, no typos and a cleverly executed post.
Guy1: Check this fly bunny on Twitter. She nothing but giggles, yo! POST: "I'm so drunk right now, I forgot to conjugate a verb"
Guy2: Who this bitch be lying? She nothing but Internet drunk! Believe dat!
Guy1: You tripping son!
Guy2: Let's go measure our dicks?
Guy1: Word up!