Lean 

When you're very high

Man I'm so lean!

Lean by Nom8 December 14, 2014

lean 

to knock a muafucka out

like when frazier was goin down lol he gat he gat leaned

lean by young deuce June 21, 2007

Lean 

To be high/ under the influence of cannabis and only cannabis. Consists of mainly a body high (a high that affects the body, e.g. Not being able to walk straight would be a body high however not being able to think straight would be a mind high). It derives from ones legs not being able to withstand the weight of a humans body and so they must lean on something to stay upright.

Wow man, after we smoked all that dope i was so lean!

Lean by a large anus July 18, 2014

lean 

(v.) to be quite blazed

"Smoke weed and be lean." ~The Streets

lean by Chandler W December 6, 2006

lean 

The effect after smoking weed

mate, im bare lean!!

lean by mr. hash May 16, 2006

lean 

adj. stoned (high on cannabis)

"Mate are you feeling lean?"

lean by Felixc212 October 9, 2013

lean 

To be high from weed
It is usually used when you are high AND drunk

Person #1: "That was a good shot of the Appleton and a nice blunt that went around"
Person #2: "I know, I'm so lean yo."

lean by RIL2 June 4, 2008