" To thumb (thumb) your nose at" someone is an interesting expression meaning to act disrespectfully towards someone or to disobey a law – to not follow a law and not really care that you're not following the law.

“To thumb (thumb) your nose at” someone 是一个有趣的表达方式， 意思是不尊重某人或违反法律——不遵守法律并不真正关心你是否遵守法律。