A phrase in place of 'give it up' or 'forget about it'. It has even been used in place of 'can't be bothered'.
Q-Do you want to do some work today?
A-Nah, sack it off.

Q-They've already gone. If we left now, we could probably catch them up...?
A-Nah, sack it.
by Thomas Worsley February 10, 2006
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to deliberately not do something/ to avoid something/ the act of ditching a person or thing.
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variations: sack it/him/her off, sacking off.
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A: wats good? wanna come cotch at mine?

B: cant, got an essay to do and some reading aswell, long.

A: sack it off - we'll smoke a joint and play pro instead.
________

A: Alex knew we were leaving at 7 where the fuck is he?

B: Allow it, sack him off we're going.

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I've been a wasteman, sacking off all day.

________

A: you do your homework?
B: allow it, i sacked it off.
by jimmy10 January 31, 2008
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to be a complete penis n leave someone behind
she aint text me ill sack them off
by tom reynolds October 26, 2005
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-To let someone down.
-To back out of an arrangement to go somewhere.
Girl 1: i was going to go cinema last night but tom is a total sack off so i ended up sitting at home eating cake.
Girl 2:that sack off tom is so lame.
by emiweebledoo January 22, 2009
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To ditch or leave someone in your crew behind. Often because they have become iritating on a night out or hatin' on you.
If Dan doesn't chill I'm gonna sack him off tonight!

Gazzy P is in a right mood I'm gonna sack him off soon

I might have to sack-off you. I will give you 10mins then we're bailing to the next club.
by rdykester December 20, 2006
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a game that is played to claim a victor. this usually comes after a disagreement between two or more people. to preform this game all players must first have a sack(burlap will work) than a sack master, so there is no dispute to who is the winner, must clear the sack path and ready the participants for action. when the game is stared the participants jump in their sack to a set point all pushing and shoving is allowed. weapons are prohibited
dude 1: i can't believe you had sex with my girl
dude 2: well i think it was ok because she wanted my cock
dude 1: fuck you its a sack off now bitch
dude 2: ill fuck you up like i fucked your girl
by Auguy21 April 20, 2010
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A new method off masturbation, generally employed by middle aged men who have got bored of the conventional method.
It simply involves rubbing ones "ball sack" until ejaculation. By acheiving orgasm through merely rubbing ones balls, you can be described as "sacking off" as opposed to the more usual "jacking off".
Clearly can be used in many tenses, and as a verb, noun and adjective;
I, he, she is going to sack off tonight.
I, he, she sacked off last night.
I, he, she had a really good sack off last night.
I, he, she is a total sacker offer.
"I'm going to go home, open a bud, put on MTV2 and have a good sack off to the Pussycat Dolls video".

"Stop talking shit, you sacker off"

"You're a real sack off"

"Last night was amazing, my girlfriend came round for the annual blowjob and steak day (March 20th - google it!!), but she surprised me at dinner by sticking her hands down my pants and giving me the most amazing sacking off"
by The Sacker Offer February 24, 2006
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