1. An unprovoked, emotionless erection that occurs without stimulation or horniness.
2. An erection of great strength and determination; usually difficult to conquer and may require extraordinary efforts to de-activate. (Commonly experienced as Morning Wood)
1. "Dude, I don't know where it came from but I need to walk this Robochub off."
2. "Man, I've been battling this Robochub of doom all morning. I can't even put my pants on. Quick, find a channel on TV with a Rosie O'Donnell closeup."