Get/be on your soapbox Definition 1 of 1Pro Tip 1/3Public Speaking Used when someone is sharing their opinions with many people, like giving a speech. At the rally, she got on her soapbox to address climate change. Pro Tip 2/3Strong Feelings Indicates strong emotions or passion about the discussed topic. He was on his soapbox, arguing vehemently for animal rights. Pro Tip 3/3Colloquial Use It's informal and best suited for casual conversation, not formal writing. My friend often gets on his soapbox about junk food.