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1.
The art of inserting the penis into vagina until balls touch the pussy.

Putting 100% into whatever you are doing until you cannot go any further.

Doing anything to the extreme, take it to the limit, going full throttle.
Jack went balls to pussy when he was fucking Nikita.

When Jack arrived in Vegas he partied for 3 days straight, going balls to pussy while he was there.
by Sir Jack Napier December 11, 2011