leng means someone really hot you dumbass. someone who is either handsome or really pretty; 11/10
"Sienna is so fucking leng"
"Yeah i know right!"
When you have nothing to reply with, or in a dry conversation either over text or in real life. It must be shouted and if written usually has x3!!! It will sort out any dry conversation and is v fun to shout across a classroom or in a teachers face
*has a dry conversation *
You: LENG ONE!!!
*conversation no longer dry*