What does "C" mean as a gender? As apposed to M or F

Many creeps here with that c. Just saying

Cosmic space traveler

So now you want all our car members to expose themselves 😒
That's rude. Let car users roam in peace

Confused?

It means "couple", for two people who share an account. I find it creepy and I wouldn't share an account with my boyfriend. 😕

Creeps

Lol 🤖

Cis trans

Couple

Couple

Couple..

"Couple" I believe.