"To delete the tweet" means to remove a message or post that you have made on the social media platform called Twitter. It is like erasing or getting rid of a specific tweet so that it is no longer visible to others on your account.
Sentences with «to delete the tweet»
The forward quickly deleted the tweet, but the damage was already done. (caughtoffside.com)
It's clearly the same guy, and the dates match up well with the information provided in his now deleted tweet. (gamingreinvented.com)