Mighty Whitey 

A trope of formulaic Western fiction: White character who, with relatively little effort, masters a skill most closely associated with the culture of another ethnic group. This skill is commonly some sort of martial art, and the White character often becomes more skilled than both his ethnic mentor and his ethnic opponent.

"Wow, look at Mighty Whitey becoming a Kung Fu master in the span of a mere sixty-second montage!"
"Amazing! Now he can go save the girl from that Evil Chinese Guy and then single-handedly beat the Other Team at the Kung Fu tournament!"

Mighty Whitey by So I says to Mabel, I says March 9, 2016

Mighty Whitey 

A white person or group throwing their weight around, or abusing their authority. All the while oblivious to the implications of it when their bully group is all white and they're making decisions that adversely affect minorities.

N.B.: The group doesn't technically have to be all white, but the few minorities around them should be of the Clarence Thomas variety where they say nothing in order to protect their own position.

The Mighty Whitey and his friends didn't think twice before deciding to cut the budget for Black History month activities.

Mighty Whitey by brown girl in the ring March 8, 2011

Mighty Whitey 

The group of people who, for the last few hundred years, has brought civilization, technology, rights, and female equality to the rest of the ignorant savages living on Earth, most of whom never even discovered the wheel, or metallurgy, or written language, and now gets shit on for it by those same savages.

"Uh oh, those filthy rag heads over there are making a game of gang-raping women; better send in Mighty Whitey to stop them!"

Mighty Whitey by Cunning_Linguist69 January 28, 2021

mighty whitey one-bitey 

The white castle hamburger, aka slider. There is a serious imbalance between the onion:meat ratio.

In this burger, there are too many onions and not enough meat.

mighty whitey one-bitey by Zach G. January 17, 2004

mighty whitey one-bitey 

A hamburger(?) from White Castle (flavor is enhanced by an evening of drinking prior to the meal). See slider.

I'm about to quickly ingest 10 Mighty Whitey One-bities! Burrrrrp!

mighty whitey one-bitey by Dave Thomas August 26, 2003

mighty white 

to do an act of kindness for another

hey bro, that was mighty white of you to water my plants while i was away.

mighty white by Dark Lord of the Anus May 8, 2005

mighty white of you

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.

mighty white of you by RjDudes August 23, 2006