grinch

plural grinches

1. USA grouch or killjoy.

   1 more example

   Here's what they would risk: appearing responsible for higher taxes next year after Obama offered them a deal to extend the Bush-era rates, coming off as grinches for failing to extend unemployment insurance during the holiday season, and the possibility that next year Obama and Democrats will actually hold more leverage in this debate.

   2010 December 9, Chris Good, “Will Republicans Scuttle the Tax Cut Deal?”, in The Atlantic, archived from the original on 04 Jul 2012

   Synonyms: grouch, killjoy, spoilsport, addle-plot, buzzkill, cold fish, curmudgeon, dampener

2. derogatoryinformalA person who is aggressively intent on ruining the Christmas holidays for others.

present singular third person grinches · participle present grinching · participle past grinched · past grinched

1. USTo act like a grinch; to be a killjoy towards someone.