It originated on www.ar15.com on June 2, 2008. Popular and regular member "shaunofthedead" purported to have the opportunity of an orgy with some unknown people. After drunkenly deliberating for several hours whether or not he should take advantage of this opportunity, at 10:42:57 EST he posted simply "fuck it im foing."
He was never heard from again.
"Is anyone going to fo to the tea party?"
"Green means "fo."
These people are often shunned from gatherings that call for the exposure of their abnormal appendages such as swim meets, pedicure sessions and exclusive feet club.