TIFU by not knowing the phrase "pinpoint accuracy"

I'm pretty new to the company and in one of my first major presentations to the company I messed up. In the midst of fancy tech speak, I was talking through geolocation services and happened to say a phrase that I thought I knew my whole life. But didn't. I said "we can target it with piss-point accuracy". I thought it did a great job until at the end my colleague said "we could have done without that potty talk though ya think?" We got into a tiny debate about piss versus pin. I always knew it as that because when you're peeing, you want to be accurate and hit the middle of the toilet or urinal. No mess to wipe down. Mama's not angry. Though as my coworker noted, pins, makes sense especially when we are talking about maps. Realizing that I might have been certainly definitely embarrassingly wrong, I was ready to concede, hang up the video, and crawl up into a ball. Another colleague chimed in "that was funny though at least you got a chuckle from [client]" which I did not remember happening. But now I'm thinking of the second or maybe even third time I said it It must have sound like I was beating a dead horse. Is that better than getting the phrase wrong to begin with? Neither is good. I can't work the rest of today.

TL;DR My whole life I thought it was "piss point accuracy"