Where you only hear a person by some auditory means but can’t see them in person and you can’t identify their gender by how they sound. Could be because you weren’t paying attention or because the sound of the persons voice was especially feminine but his name was John. Could also be intentional so as to not offend someone by assuming they are a certain gender just by the sound of their voice.

Posted by Gary Hoffman , credited to Larry Argo for creation of term.
Larry: Hangs up phone.
Jim: “Who was that?”
Larry: “It was a salesperson.”
Jim: “Was it a man or woman?”
Larry: “ I don’t know, I’m gender deaf.”
by thehoff35 May 11, 2019
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A condition affecting men, rendering them unable to hear the words spoken by a woman. This is subsequently followed by the man parroting back exactly what was said, but repackaged as his own original thought, or mansplaining, or a combination of both.
Woman to group: "We have two options. We can fix the pole, utilise a generator for 3 days in the interim, but potentially have to sink the connection in 5-10 years when the main cable is sunk, rendering the pole redundant. Or we can sink the connection now and utilise a generator for 2-3 months."
Man to the woman: "Yeah, but you've got to careful how you go about it. I see that we have two options. We can fix the pole or we can sink the connection."
Woman to man: "I just said that. You are suffering gender deafness. I have an IQ in the top one percent of the population but yet, somehow, lower IQ men like you seem to think you are entitled to talk to me like I'm stupid. Fuck you and your mental deficit."
by Consonance Take Two September 15, 2019
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