one who spoils the pleasure of others
character in How the Grinch Stole Christmas by Dr. Seuss (Theodor Geisel)
to make a harsh grating noise
French grincer
"spoilsport;" all usages trace to Dr. Seuss' 1957 book "How the Grinch Stole Christmas."
A person who spoils a happy occasion, esp Christmas; spoilsport; scrooge: The grinch at City Hall/ Mecham of Arizona is drawing fire as a new kind of grinch
[1980s+; fr a character in Dr Seuss's 1957 book How the Grinch Stole Christmas]