Learn how to say Grinch correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word Grinch:
North American informal
a spoilsport or killjoy:
it’s hard not to feel like a bit of a Grinch criticizing the importance of ‘zine culture
1970s: the name of a character in the children’s story How the Grinch Stole Christmas (1957) by Dr Seuss