What is Mighty White Of You?
1.
Used to describe someone who thinks they've done a great deed, charitable action or sacrifice, but in reality they've done very little to help the human condition.
Earl: I gave that homeless man my half eaten apple.
Roger: Wow, thats mighty white of you.
See
2.
Foolish phrase used by some to show so-called white superiority. Phrase attributed to the south, and coined during days of slavery. Now sometimes said in a sarcastic manner to people who act as they are superior because of their race.
When Bob threw a nickle into the UNICEF can at the office, and said "Those people should be glad I felt so generous." I said to him "That's mighty white of you ass."
See
3.
to behave or act in a manner stereotypically attributed to Caucasians
That was mighty white of you to help with the charity ball.
See