The full form of TFW is that feel when.
“TFW” stands for “that feel when.”

We can use it in a lot of situations. It usually comes at the beginning of a social media post or sentence to describe how someone feels at the moment.

Although it is not clear where the origin of this phrase comes from, some trace it back to the, “I know that feel bro” meme.

The correct form of this phrase should be, “that feeling when.” However, like with other internet slang expressions, a lot of grammar rules are not followed.

This phrase can be used in email, texting, and messaging. The most common place to find it would be on social media posts, especially memes. By using “TFW” in combination with various images and gifs, users can express their current mood or make a post to entertain their friends/social media followers.

Conversation Examples
Here are some examples:

Example 1:

Social media post: TFW you’re on the way to the airport, you think you forgot your passport, and then you find it.