Text art and ASCII pictures
Drawings made of ordinary characters. They line up properly only where every character is the same width — Discord, terminals, code editors. In a normal font the rows lean, and that is the whole reason copied art “breaks”.
Text art is a drawing spread over several lines. A single face in one line is a kaomoji, and the individual characters these pictures are built from — ░ ▒ █ ─ ┃ — come from text symbols, in the box drawing and block elements blocks.
One-liners text art
Short enough for a chat message or a bio. These keep their shape even in a proportional font.
Hearts text art
The most copied shape in the genre. Works in a caption, a card or a message.
Animals text art
The bunny and the bear are the two that survived from the days of bulletin boards.
Table flip text art
A two-act genre: flip the table, then put it back. Both halves are needed for the joke.
Dividers and borders text art
Line breaks for bios and posts. These are the ones that actually hold their shape everywhere.
Big faces text art
Multi-line faces. These need a monospace font — in a normal one they lean.