"To post a pic" means to share a photo or picture online, typically on social media platforms or websites.
Sentences with «to post a pic»
Don't post any pics of baby online at all. (babygaga.com)
I just posted pics on my blog, I'm new to this, but things have been fun so far Thanks for the inspiration! (theletteredcottage.net)
Also as I was there posting pics from my experience on instagram, their social media team was very responsive and was asking how it was going! (missyonmadison.com)