A YouTube Nazi (YTN) is either

a. A person who works for the website YouTube (possibly a moderator or some other authority figure) and basicly deletes 50% of the videos that are copywrited, or, as in the opinions of many (Myself included...) videos that are just to plain fun.

A YTN could also be a person who is a little bitch when it comes to YouTube, and decides to flag all of the videos that are copywritted or fun to kind of, help out the YouTube mods. In some peoples minds, this could be seen as being a nark.

A YouTube Poop, or YTP, is a mix of media (most commonly video) to generate a video that either stuns, annoys, or entertains its audience. Contrary to popular belief, YTP is not limited to Zelda and Mario cartoons, Over 9000, or Sonic cartoons, but it can be a mix of anything; material is unlimited.

The definition of YouTube Poop and the style is always being altered, and viewers of it have different reactions. To some, YTP is an art, and to others, it is worthless and pointless, with no reason to exist.

The first YouTube Poop, "I'D SAY HE'S HOT ON OUR TAIL" by SuperYoshi, was created in 2004, using Super Mario Bros. 3, and since then, YTP has evolved into a community of more than 200 poopers.

Epic battle between foes to out-do each other with irritating and annoying youtube clips. Usually played via PM / IM in a tit-for-tat fashion accompanied by gratuitous smacktalk.

A YouTube Poop, or YTP, is a mix of media (most commonly video) to generate a video that either stuns, annoys, or entertains its audience. Contrary to popular belief, YTP is not limited to Zelda and Mario cartoons, Over 9000, or Sonic cartoons, but it can be a mix of anything; material is unlimited.

The definition of YouTube Poop and the style is always being altered, and viewers of it have different reactions. To some, YTP is an art, and to others, it is worthless and pointless, with no reason to exist.

The first YouTube Poop, "I'D SAY HE'S HOT ON OUR TAIL" by SuperYoshi, was created in 2004, using Super Mario Bros. 3, and since then, YTP has evolved into a community of more than 200 poopers.

The act in which an instant messenger "friend" will IM another only once a month (or longer in between) with a link to a Youtube video that is generally not as funny as the sender thinks, subsequent to which, he or she will disappear and ignore the other's response.

Someone who has no idea how to use youtube

Cartoons randomly remixed together would be the most simple definition. Some of them are well made, have make some kind of sense and some kind of clever joke, but that's the 1% of youtube poops. The remaining 99% is a monument to the amount of stupid people all over youtube: They consist of taking an already popular clip from a cartoon, picking one of the frames and lagging it for a while so it will sound like stuttering, repeating the clip several times applying the same old video effects from wmm we have all seen so many times already and mixing up the words and sentences with other cartoon clips to make it sound like they are saying something silly like "Your ass drives me crazy"
For some reason, it usually results in most people with a retarded sense of humor loving them and making them more popular, eventually gaining enough fans to brainwash people who didn't have that sense of humor in the first place to make them think it's actually funny.