a 'donor card' [=a card that says that you want to donate your organs when you die]
She is one of the charity's/cause's major 'donors'.
The money was raised from individual 'donors'.
(..) Nicely done. You know, I was a little worried I wouldn't have the right accompaniment today. I guess it's a good thing my mom was an organ donor! What happened to the organ? Why don't you leave the comedy to the professionals? Okay? This is a funeral, sir, for my mother. (..)2018 TvShow: BoJack Horseman Title: Free Churro Season: 5 Episode 6