"Listen," Sunset complained. "I don't know you from last Sunday's sports section. You may be all to the silk. I just don't know." "Why'd you brace me?" I asked. "You had the word, didn't you?" This was where I took the dive. I grinned at him. "Yeah. Goldfish was the password. The Smoke Shop was the place."
The above is from 'Gold Fish' by Raymond Chandler. I can't figure out the bold letter part, so I am asking a help for that.