A person known to engage in the act of PigPocketing. They are not under the influence but instead know exactly what they are doing. Usually not thought of as a friend, but as that asshole in a group of people.
a girl that a heterosexual male can basically carry around in his pocket to perform sexual favours on command. If she does a poor job you scream "SOOEYYY" at her until she leaves, and then she is no longer your PigPocket and you have to find a new PigPocket who will suck n' fuck better.
I was unsuccessful in trapping a girl into fucking me tonight, I guess ill call upon the PigPocket to do what she does best!