A playful, satirical response to be used in situations where somebody refers to a person or group that you ARE, in fact, familiar with (usually somebody popular/famous), but wish to mock.
The inquisitive tone would normally suggest that you had no prior knowledge of that person/group's existance, but in situations where the person you're talking to knows that you know who they're talking about, it's an implied dismissal (i.e. you're basically saying that you don't give a shit about whoever they're talking about, calling them a nobody or a has-been).
Guy 1: "Wow. McGregor got mauled, huh?"
Guy 2: "Who?"
Guy 1: "Fuck you, dude. He's still top 3 in MY books."
Wait, what?
Hym "Who!? Wow! Ok... Ok... That's fine. Nonono. That's fine."
one of my favorite acting choices in the world
aladdin: who are you?
genie: who am ah?
It was a cold snowy November morning...a friend picked me up from my estate. We grabbed some food and entered a nearby hipster coffee shop. While playing catch up, a man got hit by a truck. Everyone in the crowded coffee shop stopped typing poetry on their Mac book and looked up. What they saw was horrifying; blood everywhere, truck shattered on the ground. After the paramedics arrived and pronounced him dead on the scene. We all decided we had to go back to our poetry and overpriced espresso. A few minutes later, the mans son fell off the second story and he was still going strong. The barista was in a bad mood after all the craziness and while trying to get a refill on my Bianca white mocha he was being extremely rude. With much despair...the words rang from my mouth “who shit in your Oreos.”
Me: cheer up
Friend: go type your poetry and I hope your flannel rips.
Me: well “who shit in your Oreos”
Lucas is a ginger and red human being responsible for Half of all global warming due to his redness.
You know lucas? No, Who is Lucas!
A Gold Diggin Broad, That’s down to suck her way to wherever she needs to get them other kinda karats. Feel me?
Jeff Bazos ex wife is a girl who eats carrots, Fosho!
When someone who didn't understand your last sentence or words is confused
"something" the what in the when in the who?