explainitude

The compulsion to bring up random terms and then explain to the finest detail every thing about said term regardless of their context in the conversation or the interest of the audience.

They rarely use more than one reference and are completely out of touch with the people they are talking to, have no idea what they are talking about, forcing themselves into relevance or have been watching videos on youtube instead of listening to the conversation.
It is a sickness and they should be directed to seek help.

Lilly: I have a friend with a youtube channel who talks about this thing called water. According to him, water is made of a combination of water and water and can be found anywhere that water is located. Water is even in people animals and plants and even some rocks and....
Me: Lilly, we need to have a talk about your explainitude problem. You need help!