To jack off really hard. So hard, in fact, you will be cumming til the morning.
guy 1: was that you lumbering last night?

guy 2: yes. so fucking hard to my cousin!

guy 1: wtf
by a real NlGGA August 10, 2017
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A child older than 15 but not yet 30 that attaches themselves to there parents and friends like a leach. They will not work, walk around looking for ways to get video games and sit on their ass 24/7 doing nothing but eating, sleeping and playing the newest game they have coned there parents or friends for. This person is uncomfortable around anyone other video nerds or people just like themselves. They will also when in a verbal fight accuse the very people that help them of getting them what they want not what they need.

They usually will amount to nothing in life but a sponge or leach.
Brother: Do you know where Cody is?

Father: I don't know where that useless Lumbering Lomax is at!

Dude that bitch Cody is nothing but a Lumbering Lomax!
by Big Bad Bobinator December 12, 2012
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equivalent to morning wood, but infinitely more manly and more girthy sounding.
"Man, this morning lumber is no joke. That's the second pair of Levi's I've torn through this week!"

I had such fat morning wood, it would take a lumberjack to cut that shit down.

Liz's most noticeable feature as she woke up was her morning breath. For Mark though, it was definitely his morning lumber. It nearly bruised her ribs as he rolled over.
by CougHunter February 18, 2010
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When your boner kinks when you try to shove it in her ass but she clinches.
She wouldn't relax when I tried to plow her ass and left me with softwood lumber.
by MVCV007 November 29, 2016
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Similar to an all-female "slumber party", a lumber party is an overnight between male friends.

Lumber refers to dicks. All male party=dicks. Therefore, lumber party.

Similar also to a "sausagefest", but a sleepover.
Tim: Dude did you go to Tom's sleepover last night?

George: Naw man, that was a total lumber party.
by grovecityfan March 31, 2010
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Bringing your best to an activity or performing extremely well. Used sometimes in contact sports where you are very physical and dominate.
After making a lot of big hits during a sport one would say "DANG! You were laying the lumber out there!" or after getting a very good score on a test you brag to your friends "Yea I just laid the lumber on every single question. That test had nothin on me." OR before an activity a coach might say to his team, "Get out there and LAY THE LUMBER!"
by Ethan U. December 11, 2008
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When you try to shit into somebody else's worn out asshole and pass the turd back and forth until it loses its form.
The physics behind trading lumber is being researched by a team of gay scientists at the University of San Francisco.
by loose plumbing January 8, 2008
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