To do something incredibly, obivously stupid, even when you know better.

IE: as in Client Nine from 2008 Governor-Gate in NY
Dang Zippy don't be a Ex-G and pull a nine.
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to pull out ur nine and shoot u
(Whitey acting like a black)
black guy: Im gonna pull out my nine and bust a cap on his ass.
by Jordan March 15, 2005
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