This happened about a year ago. I was on tinder and matched with a girl who was just looking for sex. I was too at the time so after chatting a bit we talked about meeting soon. We were sort of sexting a bit and she asked me how big I am. I was honest and said 6, then she immediately unmatched. I was very surprised and a bit confused. 6 isnt gigantic, but its not tiny either. Ive never had any complaints about being too small before anyway. I figured she must have been looking for a yard stick or something and i guess thats not me, but I was a pretty disappointed. It was only recently that I remembered this and it clicked. Im an American, but I have been living abroad for a few years now and every now and then my brain automatically retutns home. I said 6, but left out any units of measurement, leaving her to naturally assume I meant centimeters, which would be about 2.5 inches.

TL;DR I accidentally told a girl i have a micropenis because i forgot to convert inches to centimeters