This was the insult often used by members of the Republican party towards 2000 presidential/vice presidential candidates Al Gore and Joe Lieberman. Their campaign signs read "Gore Lieberman," and the insult is a play on words referring to how Mr. Gore criticized the handling of the Florida vote counting, resulting in the closest (and possibly most botched) presidential race in the history of the United States.
"Hey, didn't she go in to the Peace Corp?"
"No, she gave up on that idea once she started townie losering with some 30 year old alcoholic who lives with his parents."
On special and rare occasions, someone by the name of brent is given the nickname "Brentino". When this individual acts or says something that makes him resemble a loser, he may be insulted or reminded to get back in his box by using the term loserino.