A grouch or killjoy.
One who makes merry; a reveler or celebrant.
‘I'm not much of a holiday merrymaker, but I do appreciate a stiff glass of eggnog while the others sing carols.’;
A person who aggressively sets out to ruin the Christmas holidays for others.
One who makes merriment or indulges in conviviality; a jovial comrade.
The Grinch is a fictional character created by Dr. Seuss.
a celebrant who shares in a noisy party;
‘the clubs attract revelers as young as thirteen’;