A rod in pickle old-fashioned noun phrase
A punishment or penalty that is prepared for future application
The teacher said he had a rod in pickle for those who didn't do the homework.
To punish someone or something harshly
To escape from the statement saying that someone is guilty of a crime or of doing something wrong or evade impeachment without being responsible for any sentence or punishment
Someone is going to receive a harsh punishment for what he or she has done something wrong.
Small-time criminals will face the full consequences of the law while those who commit large-scale crimes will go unpunished.
If you fall for someone's trick the first time then they are at fault.
Are you going to mess with me again? Fool me once, shame on you; fool me twice, shame on me.