Chain jacking is a term used by the masturbation community, where three men stand in a row and simultaneously masturbate together
David, Deondre and Henry had a chain jacking session at noon
by Tttttt1 August 27, 2018
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the act of masturbating every 10-15 minutes

(like chain smocking)
"i invited nick over but he was to busy chain jacking"
by tophercat9 May 22, 2010
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The most talented and awesome electrician on the job site
WOW, did you see the pipe run and wiring that was done by jack chain?
by JACK CHAIN July 25, 2023
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