Urban Dictionary

A person who steals items from retail stores only to then sell on the streets, usually for a discounted price.

A roller coaster enthusiast who is realllly into roller coasters. Like, never fucked a pussy-level nerdom. Can often be spotted obsessing over non-important aspects of roller coasters, amusement parks, and entertainment industry, wearing cargo shorts, park pins, and a handheld digital camera. Fury 325, Steel Vengeance, and Orion shirts are also popular.

That foggy, low-energy feeling after a really good experience ends. Not sad exactly, just… dimmer. Like emotional jet lag after a great night.

The act of intensely rooting against a person, team, organisation or entity out of sheer dislike, deriving satisfaction from their failures.

When someone overthinks a decision so much that they end up not making one at all.

Someone pretending to be a fan of a series or any other piece of media
(mostly dominant in the animanga space)

Originally meaning "live action roleplay" its now an insult similar to calling someone a "poser"

Wrist Bait – Wearing an expensive luxury watch like a Rolex, Patek Philippe, Richard Mille, or a Jacob, usually in crowded city streets or nightlife areas, and flashing it off in public. By showing off, or constantly checking the time, you make yourself a prime target for thieves looking to snatch it.