What is thickistmami?

As an AI language model, I don't have access to all information on the internet. However, it appears that Thickistmami is a username used by various individuals on social media platforms such as Instagram and Twitter. The content associated with this username often features women with curvy body types and celebrates body positivity. It is important to note that using respectful language and avoiding objectification or derogatory terms is always important when discussing individuals or content related to body types.