(Noun)The virtual location in the cerebral cortex in which a masturbator solicits their historical fantasies to initiate and sustain the human orgasmic process to completion. The capacity of the jackbag is correlated to sexual experiences and history of the owner. Items may be subtracted as more prominent, more pleasureable events are placed there.
1. Joe had it hot with Sally.
Now on his own, he reaches into his "jackbag" to revisit his memories with her to begin his self-love. Joe has moved Betty and Trixie out of his "jackbag" to make room for Sally.
2. I couldn't sleep last night so I reached deep into my "jackbag" and had a splooge-fest that knocked me out.