Protuber

Person who claims to be an expert on a topic because they watched a youtube video.

Albert is a protuber of personal finance.

Protuber

Someone who has watched a video on YouTube with no prior experience on or about the diy projects they plan to attempt OR a person who claims they are very well knowledgeable about the subject or task because they saw a video on YouTube.

"Did you use a string line to make a foundation square for the slab?"

"Yes and the string was used but I took it down."

"Oh no that's not what the construction brothers did on youtube, didn't you look at the videos I sent!?"

"Stupid ProTuber "