chain youtubing
when you go to youtube to watch videos back to back without a break; based on "chain smoking"
Teacher: Why didn't you get your homework done last night?
Student: I was chain youtubing
Student: I was chain youtubing
Youtube Chain
When you go through videos on Youtube by clicking only on the related videos section of the video without going to the homepage or searching.
"Man I must have watched 50 videos on a huge youtube chain last night"