Back Jack

What is Back Jack?

To extricate ones testicles onto the back of ones partner. In other words to withdraw and jack onto your partners back.

Onanism, Ice The Cake, Paint the Lady.

At the last minute she told me she wasn't on the pill so I had to back jack her.

I was going to blast insider her but she is his mum so I back jacked it.

See jizz, spunk, ice the cake, sperm, ejaculate

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Back Jack Edit Meaning