Jacob is a guy who cant drive and will probably crash his car a month after his driving test. He is hugely charismatic and handsome and is the sorta guy to never cheat on his GF. That wont stop him from trying to get with his best friends ex's though...
To deny something in terms of permission or just facts and what happened or something is what jacobing it is so thats what it means to jacob something
He asked me if he can have permission to operate my car but I jacobed it and another example is a man at the bar asked me if I drank his beer but I jacobed it and you jacob things if you have to jacob things