1 B1 idiomatic slang
To decide not to attend or do something; to cancel or skip a commitment.
"I was going to go to the gym, but I completely sacked it off and stayed home instead."
separable
sack off
B1 slang separable transitive
British slang meaning to decide not to do something, or to dismiss/abandon a plan or commitment.
In plain English
To decide you are not going to do something you were supposed to do.
What does "sack off" mean?
2 meanings, ordered from most common to least. Color-coded by CEFR level.
2 B1 idiomatic slang
To reject or dismiss a person, idea, or relationship.
"She finally sacked off her unreliable flatmate and found someone more responsible."
separable
Usage tip
Chiefly British, informal to slang. Common among younger speakers. Can mean both cancelling a plan and dismissing a person from your attention.
Words that pair with "sack off"
Natural word combinations native speakers use most often.
work gym plans meeting idea someone
How to conjugate "sack off"
The five tense forms you'll use most often.
Base
sack off
I/you/we/they
3rd person
sacks off
he/she/it
Past simple
sacked off
yesterday
Past participle
sacked off
have + pp
-ing form
sacking off
continuous
Hear "sack off" in the wild
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