The phrase "rude surprise" means being unexpectedly and impolitely shocked or caught off guard by something.
Sentences with «rude surprise»
If you assume that your life expectancy should be your guide for estimating how long you'll need your nest egg to last, you may be in for rude surprise. (realdealretirement.com)
By being clear about everything beforehand, you can avoid rude surprises at the time of claiming the insurance. (policybazaar.com)
This wasn't the first rude surprise of the day, and it won't be the last. (automobilemag.com)