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1.
The ability to know if something is "No Homo" or "pro homo" in a sutiation.
"Yo, You heard Stan kissed Dave?
Know homo man."
by Paddy O'Mally March 23, 2009
 
2.
An educational website designed to provide resources and a safe space for the LGBTQ*/Queer community. They describe themselves as:

A blog about our history,
our society, our loves,
our fears and us
--the LGBTQ*
(which is inclusive to all who find comfort under the umbrella).
Jennifer: Did you hear about the queer photographer from New Zealand who photographs the trans* community?

Steve: Yeah, I read about it in a post by Know Homo yesterday!
by FemmeSparklePrincess September 25, 2013