Severe Verbal Diarrhea

When someone talks non stop.

Most often seen when someone had too much sugar or caffeine.

Emily: So today...and so ya...like...who cares...I don't even know..shut up...NO WAY...
Tim: .................
Emily: Are you even listening?!?!?
Tim: Ummm....no....but...I think you have Severe Verbal Diarrhea...
Emily: No I don't!...(goes on talking non stop)