1 definition by Flannel Fly 66, LLC

A guy(Cis or trans) that is known to prefer the company of lesbian women for platonic relationships.

Is thought of as the equivalent (counterpart) of a woman who is known to associate with gay males. (Fruit fly)
Why is he always wasting his time with those women, doesn't he know they are all lesbians?

Nah, he knows, he is just a Flannel Fly.
by Flannel Fly 66, LLC March 22, 2017
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