To Youtwobe is to upload a video on Youtube which is already there. This happens rather a lot concerning music videos, and consequently the person searching for the video ends up manually filtering through all the distorted-pixel trash in order to find one of good quality.
Baird: Hey, I've got a new video up on Youtube, totally original - check it out!
Leslie: Another Bohemian Rhapsody? Ay-ay-ay... You're such a Youtwober.