If you use the Twitter API you can change the "tweeted from" to anything you want.
Dorothy is a troll who has claimed to be a black, trans, lesbian, Muslim, among other things. She have also been caught having multiple accounts, claiming to have been multiple ages, have sent fake harassment stuff from one of her accounts to another one of her accounts, and so on.
Read this thread for more info:
Wanna make your own tweet from your "my mom's GUCCI vibrator"?
Follow the instructions here: