As chinese slang “走人" At least baidu baike gives explaination. SS (hate to type them now:) you cant find it anywhere as English slang. Maybe only in ut imaginaion :)
http://wapbaike.baidu.com/view/389296.htm?ssid=0&from=844b&uid=wiaui_1333347675_233&pu=sz%401320_2001%2Cgt%40500082_apple_iphone_0_2%2Cusm%401&bd_page_type=1