The phrase "big kicker" means a surprising or unexpected event or factor that has a significant impact or effect on a situation.
Sentences with «big kicker»
Private schools are the other big kicker in NYC living expenses. (policygenius.com)
For whatever reason, they are not big kickers in the womb until the 24 week mark. (babygaga.com)
Here's the even bigger kicker: Sites like eBay, Craigslist, and OfferUp are littered with new or gently - used Echos and Echo Dots for even less. (howtogeek.com)