cobweb
The name 'Cobb' evidently appeals to Nolan, as he uses it for a character in this film and another in the later 'Inception'. In 'Following', it is perhaps not entirely arbitrary as 'cobb' is an archaic term for a spider, as in cobweb, as in entrapment, etc.
"I beseech ye in the bowels of Christ, think that ye may be mistaken."