A question that you ask when someone has said something incredibly rude, stupid, offensive, or otherwise awkward and antisocial.
Guy 1: Like, as far as I'm concerned, those people deserved to be bombed ....
Others: What???
Guy 2: Who farted?
by ring-tailed roarer March 18, 2011
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A face that people sometimes make when they are confused, bewilded, snobbish, or midly irritated. Characteristics include
- Squinting of the eyes
- Snarling of the nose
- Lip moving upwards
Chloe from the show "24" often displays such a face.

In a sentence:
Dude, what's up with Chloe she always looks pissed and has that "who farted face"?
by Nico Valentino January 17, 2007
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