Trademark tm is an Internet term, in which tm is usually the abbreviation of "trade mark". This word is usually used to express the characteristics of someone or something or a sign of a certain point of view. Trademarks are the legal property of individuals or companies and can protect their products and services from being copied by other groups, so the use of tm is also one of the ways to protect your own trademark rights. However, in some cases, tm can also be a provocation or an insult, so it needs to be used with caution.

There is also an irregular use of trademark tm, such as adding tm after a brand name that is not the trademark, or using it as a satirical or negative use. The use of tm at this time is inappropriate and may give rise to legal issues as it may mislead consumers and result in damage to the trademark owner's goodwill.

In real life, trademarking is often a humorous expression and is often used in social media or Internet culture. It can express support or opposition to a point of view, or approval or dissatisfaction with a personal or company brand. Although this is a unique online language, we also need to pay attention to the occasions and methods of use to avoid misunderstandings or legal issues.