Sentence:  The Bat—they called him the Bat.nb.... He'd never been in stir, the bulls had never mugged him, he didn't <WSD>run with</WSD> a mob, he played a lone hand, and fenced his stuff so that even the fence couldn't swear he knew his face. 
Meaning of the word marked with <WSD> tags:  To be a member of (a gang or hooligan firm).