When one smokes the reefer all the time and gets that head fog which makes you feel fuckin brain dead. Most prominent in smokers of British street skunk which bamboozles the thoughts into mush even faster.
"Feel like i'm in a permanent state of chunce these days"

"Looks like Joe's come down with a serious case of chunceitus!"
by Fisherman George November 26, 2019
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A mixture of the words "nonce" and "chode"
Often used as the highest form of insult between a group of friends
A guy: I've got an Irish passport
Everyone: Shut the f*ck up you chunce
by CrunchyFrogCremeEgg July 5, 2016
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A drug dealer who rips people off. Or anyone that rips someone off
Jeff: Yo I just sold a .5 for $20
Zac: you f**king chunce
by Cpt_Scubbings December 4, 2014
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