Verb: To go on the Bob Hill is to go stealing, or to plan to go stealing. Can also be used as an adjective
Note: As this is abritish english term, the 'h' is often omitted in speech, and this should be written down as bob'ill, if used in a direct quote. (Akin to Ham > 'Am; Cheese an' 'am buttie)
A: I'm going to ASDA. Fancy coming on the bobhill?