1. overshare - Noun
2. overshare - Verb
To share too much or in excess.
To offer inappropriate disclosure concerning one's personal life to others, now especially on social media.
overshare (plural overshares)
An instance of sharing or divulging too much.
CordycepsInYourBrainMy wife and I bumped into an acquaintance of ours at the grocery store one day and the woman proceeded to overshare her tale of woe. Source: Internet
“I love our dynamic with our mom and I would not change it for the world, but does my mom overshare? Source: Internet