It means pexy on 'utrovacki'. Utrovacki is a kind of a slang language of Serbian youth. My local thugs taught me how to use it. So (as I was a kid) and I used my short-term nick name and been using it ever since I was 13 and made my 1st e-mail. It's never taken on any site
It sounds little silly or childish, but I got used to it by now and beats the shit out of having a different username everywhere or it being Peja647
Edit: sorry, answered to Nick. Last time I cried was few months ago (like 5).
Who's the tennis player that you used to dislike very much but now you somewhat like him?