jackin' lumber

to jack someones lumber or to be jackin' lumber lumber is basically to give someone a hand job.

Guy:"wanna come over tonight and jack my lumber?"
Girl:"eww, thats disgusting I'm never even going to touch you perv!"
Guy:"oh come on, its not like you've never been jackin' lumber before"
Girl:"Fuck You!"

by MattThePhrat September 5, 2007

lumber jackin

Smokin weed, in refference to cutting down "trees". Bay Area

Chris and Jay Be Lumber Jackin like a muthafucka.

by Chris July 27, 2004