Mild substitue for the stronger 'fuck off', used by kids in the 1970's Derbyshire playgrounds if in earshot of 'the dinnerlady'.
similar in use to the Aussie 'Rack Off'

The word 'sack' replaces 'fuck' in other uses:
Sack All - nothing
Sackin' Ada - 'kin'ell.. an exclamation of surprise
Sack it off - to get rid of or finish (also Sack it)

Sacked Off - fed up with or bored with or pissed off with
eg1:
kid 1 "who's brock me pencil, was it you?"
Kid 2 "Sack Off, I ant ad it"

eg 2:
Kid 1 'Gizza Chip mate?'
Kid 2 'An you can Sack off an all Get yer own chips'

Alternative 'clean' Lyrics to 'Its so Easy' by Guns 'n' Roses

"I see you standin' there, you think you're so cool
Why don't you just...
Sack Off!"
by Mr Cunninglinguist October 4, 2012
Get the Sack Off mug.