It's as funny as it sounds!
One of the things that raised a lot of questions over Donald Trump is his Twitter account, as we all know by now.
His tweets have been met with mixed reactions, it's fair to say, with people agreeing with some of them, and raising questions about others.
Because of this, someone has that allows you to generate tweets that look like they were made by Donald Trump himself!
For example, this is one that was aimed at Sean Reidy from SPIN News:
Meanwhile, he's not too fond of me, either!
Thanks, Mr President-elect!
There's loads more options. All you have to do is put in someone's name (or Twitter handle) and then you can choose from a load of different tweets.