Zuko Moment

A phrase referencing the character Zuko from Avatar: The Last Air Bender.

‘Zuko Moment’ can be defined as: Any time something happens to someone so bad it negatively influences their behavior for an extended period of time.

Most often a betrayal of trust by those thought closest to the betrayed.

Dude 1: Damn, Tim just walked in on his girl cheating and she threw him out of his own house.

Dude 2: Poor mf had a Zuko moment. Hopefully he figures it out.

Tier 4 meme

A meme requiring almost an impossible knowledge of internet lore and underlying meme context to understand. Even with a detailed explanation, no normal person will ever understand the Tier 4 Meme.
When one encounters a Tier 4 meme and comprehends it their minds are blown.

Typically seen in group chats. Sent only from the group know it all. Often to no response.

Stop sending tier 4 memes. They are fucking with my head.

Jared needs to stop sending tier 4 memes in the work group chat. People are starting to think he's weird.