Using submission techniques on your partner during sex. Screw-jitsu is frequently employed to facilitate unhindered getaway after sex, to spice things up, or just for practicing techniques.
Brian: Where's your wife?

Scott: Sleeping upstairs.

Brian: During your party?

Scott: She was giving me birthday head and I put her in a triangle. Maybe I should have let up before she went out. She didn't tap out...

Brian: Well she should know the rules of screw-jitsu by now.
by dr. dave js October 7, 2011
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