a grudge is a bad feeling or hate you hold against another person for something bad they did, or you think they did, to you.
I've held a grudge before. It's stupid.
The best video game series of all time.
That's just my opinion.
The reason I can't do what I want most of the damn time.
Homework: The reason school sucks, bar none.
Eric Theodore Cartman is not only (easily) the best character on South Park, but one of the best characters in television history, and dare I say fiction.
Cartman is the shit. Period.