This page is about the phrasal verb kick inINFORMAL
If something kicks in, it starts to work or it starts to have an effect.
- kick in I took some pills for the pain and after about half an hour I could feel them kicking in.
- kick in The effect of last year's tax cuts should kick in soon and start boosting the economy.
This medicine will make your temperature go down, but it takes about an hour to kick in. It doesn't work
Contributor: Matt Errey