The keyword "big macky esse e grande portuguese" shows that people are typing this phrase exactly as they hear it – without correct Portuguese spelling (“é” vs “e”). This indicates that the meme is spreading orally (via TikTok voiceovers) more than in written form. People are searching for the meaning of a sound they heard.
While there is no formal academic paper on this specific phrase, you can find information related to his work through these resources: big+macky+esse+e+grande+portuguese
A "feature" (often used in music or collaborations) refers to a guest appearance or a highlighted part of a creative work. In the context of your phrase—"Big Macky, esse é grande" (Big Macky, this one is big/great)—it sounds like a producer tag The keyword "big macky esse e grande portuguese"