8
When you're in a public transit, like a bus or train or plane, you pull out your penis before the person next to you sits down and you put it under them with out them knowing.
Marc: Hey Nathan, do you remember that time i lumber jacked that chick on the bus?

Nathan: Yeah, lumber jacking is totaly awesome!

Marc: Haha that was hilarious, why don't you come sit beside me nate?

Nathan: Sure, i don't see any harm in th...awww why's my seat so hard?
by Adam Demamp November 03, 2011
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9
Another term for "cock blocking" except the offending person, or item is actually "killing your wood" because it is distracting you and/or so repulsive you could not possibly be aroused while you are thinking about it.
Dude, I love this truck but the purple color is totally lumberjacking my game.

Did you see her ugly friend? As long as she was around she was lumberjacking me while I was hitting on the hot one.

We were eating at this fancy restaurant, but watching her eat snails totally lumberjacked me
by TommyGunz519 September 18, 2011
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10
It is to have sex while wearing a fake beard or real beard and only flannel. Using Maple Syrup and Bacon in the sex is optional though full recommended to get the full effect.
I only like it having sex with Johnny when we are Lumberjacking.
by Nwordisawesome August 30, 2010
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11
The act of masturbating while someone chainsaws you
This chick blew my mind; we were lumberjacking all night!
by ChainsawGoddess October 23, 2010
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12
Extremely forcefall act of giving a man a two-hander/the jacking of the man's genitalia that calling it a "handjob" would simply not capture the sheer magnitude of the stroke(s). Hence, there must be a new word created all together to describe this phenomenon!
Danny Blaze: "Yo, did you get anything from Kimberly last night?"

Craig "Too Big" Phillips: "Yeah bro, she was lumberjacking so hard last night I'm calling her 'Paula Bunyan' from now on!"

Danny: "Fuckin' A!"

"Too Big": "Yeah, she calls me 'Groot' now!"

Blaze: "Fuck, bro!"

Groot: "I am Groot!"
by Gizmo11 April 16, 2017
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13
The act of taking people's discarded christmas trees from the curb in front of their house and leaning the tree against their front door, so when they open he door the tree falls on them.
Lets go lumberjacking tonight there are lots of trees out.
by gino41 January 08, 2008
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14
When defacating, the act of cutting short your faeces before you are finished, usually due to interuption.
"dude, yesterday I was dropping a hot steamy log and just as I was getting to the thick of it the UPS guy arrived and I had to lumberjack it!"

"there's two hobos fighting outside?! I'll be right there! I'm lumberjacking it!"
by Guyxander August 18, 2009
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