To Delsplain is to continually talk bullshit to a YouTube audience. Someone Delsplaining will generally be seen to make things up on the go. They usually have no knowledge of the subject they try to teach, they then do it in an unsafe manner.
Did you see that video of John mending his mobility scooter! He had no idea how to fit that wheel but as usual he just kept Delsplaining as usual. But hey you already knew that!
by Bertyflirtyandimthirty March 8, 2021