to suddenly begin an argument, fight, or trouble, often in a lively or disruptive way.
Things really kicked off when the two teams started arguing with the referee.
A: Why did everyone leave the party so early? B: It all kicked off after someone insulted the host. It got pretty heated.
If the government fails to address the issue, protests could easily kick off across the country, leading to widespread unrest.
Common mistake
✗They started to kick off the argument.
✓They kicked off at each other. / It kicked off between them.
This sense is intransitive ('it kicked off') or 'kick off AT someone'. Don't use it transitively for 'start the argument'.
Tell it apart
It kicked off after the match.
a fight broke out
The match kicks off at three.
begins
'Kick off' in this sense is informal and usually describes the sudden start of trouble, an argument, or a fight, especially in spoken English. Avoid using it in formal writing.Unlike the B1 sense ('to begin an event or activity'), this sense is figurative and refers specifically to the start of conflict or trouble, not just any event.