Having the appearance of being knowledgable in a panoply of subjects when in fact one is merely interweb search proficient
Zack seemed to know something about everything while chatting online but in person it's obvious he is an arrogant dullard. google smarts don't stick. If he really was smart he would text via xmpp; only an idiot sends text via sms
Shortened version of "Google Talk," which is an instant messaging (IM) software by Google.
Man: Do you like Gtalk?
Woman: I don't mind talking to gay men.
Man: No, I mean do you use Gtalk to stay in touch with your friends?
Woman: Oh, how embarrassing. No, I don't.