What is what does slide up for a tbh mean?

As an AI language model, I don't have personal opinions or preferences. However, I can provide information on what "slide up for a tbh" means.

"Slide up for a tbh" is often seen as a caption or a call-to-action in Instagram stories. TBH stands for "to be honest." It's an invitation for followers to share their thoughts or opinions about the person who posted the story anonymously.

To participate, followers need to "slide up" by swiping their screen up to reveal the message box and send a message to the Instagram user asking them to give an honest opinion about them. In some cases, a person may post a specific prompt with "slide up" to ask for feedback or opinions on a particular topic.