To get high, most commonly by means of marijuana. Trees is a common slang name for marijuana. When you climb a tree, you're getting higher in elevation than when you were on the ground. Therefore climbing trees refers to getting high off of trees.
Hey I just got an eighth of some haze, want to go climbing trees?
by Kev564 February 26, 2007
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To masturbate out of desperation, especially during an extended period of sexual abstinence. Often the abstinence is not by choice, but rather by one's failed attempts to make it with someone else.
The term originates from an episode of "Two and a Half Men".
"...if you still have the energy, pull it like a monkey climbing the mango tree."
by J. Gam August 25, 2008
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The Hairy Dude That Climbs trees is a wildly savage animal. It was discovered in 2019 by two middle schoolers named Ally and Aleena. It can be a very dangerous creature if disturbed or mocked. It has been spotted very few times and is knows to always be in a tree. Recent studies show that the Hairy Dudes prefer oak and maple over pine and firm trees. There is a very large bounty on the creature, if found, captured, and brought into authorities alive and unharmed, you could be rewarded with $300,000,000.00, but if brought in harmed, or dead, you could be fined with enormous charges, or even face a life’s sentence in jail. The Hairy Dude that climbs trees is a human sized animal, about 6 feet tall and it looks like a short, or shrunken big foot, or a hobo. If you happen to encounter one, don’t worry they speak Spanish and pig Latin. If you speak neither of those languages you could be in trouble, so hocus focus poopy. The Hairy Dude that climbs trees will eat you alive if it is hungry enough. Although this usually only happens if it has not had its daily dose of Chex thingies. Keep an eye out, and remember, Aaron, B is not a vowel.
Ally: are you the hairy dude that climbs trees?

Aleena: why yes

Aleena: takes off disguise to reveal a very hairy face
Aleena: aaaaaarrrrrrrrgggggghhh
by ~ Hay Hay ~ December 14, 2020
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The Hairy Dude that climbs trees is a savage creature discovered by Allison Hay and Aleena (last name unprovided) The hairy dude has been spotted approximately 46 times and is known to always be hidden climbing in a tree. No one has ever seen the creature outside of a tree. Studies have shown it likes oak and pine trees and hates maple trees. The Hairy Dude that climbs trees is a very hairy looking creature, almost looks like a shorter, shrunken Bigfoot. It will sometimes be found wearing Hawaiian swim trunks. There are is a large bounty on the creature and if found, captured, and brought in alive, you could be rewarded up to $300,000,000.00 but beware, if you don’t hocus focus poopy, the hairy dude could eat you alive. It quickly hungers if it doesn’t get its regular doses of Chex thingies
Ally: are you the hairy dude that climbs trees?
Aleena: why yes, *pulls off disguise to reveal thee very hairy creatures face* aaaaarrrrrgggghhhh
by ~ Hay Hay ~ December 14, 2020
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Slang indicating that a man is very tall in addition to being attractive, implying that to have sex with him, one would need to climb him first.
Have you seen that hot new intern? I'm going to climb him like a tree.
by mablesse July 5, 2011
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