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to slack off
01
become less in amount or intensity
Grammatical Information
Composition
phrasal
Action verb
Regular
Separable
Particle
off
Base verb
slack
Present tense
slack off
3rd person singular
slacks off
Present participle
slacking off
Past simple
slacked off
Past participle
slacked off
02
to deliberately avoid work or put in minimal effort
Slang
What does "to slack off" mean in effort slang?
The phrase "to slack off" means to avoid work, reduce effort, or become lazy or unproductive when expected to be working or studying. The structure is informal slang where "slack" implies looseness or lack of tension, extended to mean reduced effort. It is commonly used in school, work, and everyday contexts to describe not fulfilling responsibilities properly.
Examples
Emily is slacking off this last semester.
