This is likely a nickname for a specific character or a persona (possibly a "Grinch-themed" original character or a specific fandom character like Grima or a "Grinchie" Frenchie).
If you are looking for specific content related to these individual elements: Hooters W! Grinchie
The specific term does not appear to refer to a widely known official document, academic paper, or established internet meme. Based on common usage of these terms, the query likely refers to a specific piece of fan art or a character commission within an online art community (such as those on X/Twitter, DeviantArt, or Reddit). Likely Interpretations This is likely a nickname for a specific