Used in any sport, most commonly in Boxing and Soccer/Football. Anyone who isn't really into a sport and they have a small thought of whats going on is a casual. They will have insanely shit and inaccurate take of something that happened in a sport. The reason for this is because they are not entirely invested in the sport they're giving the opinion on or they don't know how the sport works enough to give an actual decent take on it.
Casual: Manny Pacquiao was totally robbed!! Mayweather won the judges are on Floyds side! Floyd totally paid them to make him win!
Someone who knows boxing: You idiot Mayweather clearly outboxed him and won in points lmfao, i hate casuals.
Grange Hill Casuals is a term given to intimidating 12 year olds that go on football away games in a large group. They probably all wear Stone Island coats bought from a market, will definitely wear Adidas Gazelles, and their favourite song will be 'Sally Cinnamon' by The Stone Roses.
Person A: Are you going to Accrington Stanley away mate?
Person B: Dunno, are the Grange Hill Casuals going?
Person A: Yeah they are.
Person B: I'll give it a miss mate, we were at Plymouth away last week and one of them set off a pyro.
A phenomenon that occurs when a video game developer changes a game mechanic to make the game easier for new players. Alternatively, if a game developer lessens the skill gap, then this phrase fits the mould as well. This typically makes the game less enjoyable over a longer period of time