Top Definition
ditching. It usually applies to ditching school but it doesn't have to.
Use of the past tense is okay too, for example sluffed.
We went sluffing today during fourth period.
I sluffed it during the chemistry test because i didn't study.
I really wanted to go to the beach today but i couldn't because i had to work and i didn't feel like sluffing.
by kerplunk304 May 02, 2006

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Utah word. No one knows it but Utahns...
Ditching class, Cutting Class.... etc.
Lets go sluffing next period we have stupid Mr. Whyfuck, and he wont keep his hands out of the back of his pants.. Fuckin nasty.
by Gabbbehhh June 21, 2007

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UK slang word for menstruation,
You wont be eating any muffin
When her womb has started sluffing
-Amateur Transplants

by Mr Moz January 03, 2008

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1. to be behind

2. to fail due to lack of skill or concentration
1. Quit sluffing! We're gonna be late!

2. Bob tries to roll a joint but messes it up horribly.

Billy says "Aww dude your sluffing, how are we supposed to smoke that?"
by Billy McSideburn December 06, 2009

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Verb:
Slacking; to avoid work;
to put forth less effort
Stop sluffing in your workout and put forth more effort.
by Southern Momma February 21, 2014

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To be lazy or mess up on something
person1- "hey can you grab that for me"

person2- sure dude (breaks whatever it is he is grabbing)

person1- aww man your sluffing!
by Goat_Killer044 July 21, 2010

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verb. To sluff. The act of riding someone else's wifi without their permission. Akin to wardriving.
I hate it when those tools on my block are sluffing on my network!
by goestoeleven June 11, 2010

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