1 definition by paus_rokoko

Top Definition
A gay guy's best female friend, who secretly hopes for the gay friend to fall in love with her. This is usually canalized through playful flirting and jokes about becoming a couple.
Grace was Will's flirt hag in the show "Will and Grace"

Guy: "Look flirt hag! stop messing with my boyfriend"
by paus_rokoko January 14, 2009

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