A person who watches videos on youtube daily, often people who like uploading and commenting on videos.
Sam: Hey Jim, I saw your youtube profile page last nite, you watched over 1,000 videos!!
Jim: Well i was kinda bored.
Sam: You are a tuber now!
A shorter way of saying, bad athlete.
John: Im nervous about the track and field times. I think i screwed up.
Ben: Well at least you will have better times than the bathletes!
John: Thats true!