A YouTuber who makes often low-effort commentary videos that ride off the success/controversy of another, larger YouTuber's content, effectively scrounging the crumbs of clout that fall from the table of said larger content creator.
Did you hear about that big video on that controversial topic? A bunch of Crumbtubers came out of the woodworks to tell everyone what they thought on the video with random annoying gameplay footage in the background. Even then, they basically just replayed footage from the original and said nothing of substance in response.
by GarretBF February 04, 2023