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To leave earlier than necessary. To go home earlier than required.
Royce had a bad case of rosism yesterday, he left 1 hour early from his friends house.
Rosism by Luke January 28, 2004
Related Words
rosism Rosismita robism Rossism rohism Rosimo rossmary Rossmond rasism Ronism
A Rossism is an error in speech in which a figure of speech or sentence is jumbled or confused, yet still intelligible.

It was named after Ross O'Donovan, part of the Let's Play duo Steam Train, which is a spin-off of another Let's Play series called Game Grumps. Ross is well-known for accidentally jumbling up locutions.
Some examples for Rossisms:
"That train has sailed."
"It's like listening to a mirror."
"Don't count your chickens before they egg"
"How you going?"
"is rly good"
Rossism by The Mungoman September 20, 2013
Robism religion believing in the great Robespierr_e from Bloxtotzka/Arstotzka in Roblox
Glorious Glory to the Glorious Rob!
I believe in great Rob, I love Robism.
Robism by Cyprixon January 15, 2023
The generic term applied to the following of the Church of Ron, whose members celebrate Ronadan and Ron Hashana. Ronists advance through each echelon of the religion through small payments.
"Phil's just advanced to a level 3 Ronist. It cost him £30,000 but he now knows more secret information about Ronism!"
Ronism by Church of Ron May 12, 2008

Rossmoyne Senior Highschool

Rossmoyne Senior Highschool (RSHS) is a highschool in the suburb of Bullcreek located in Perth, Western Australia. Much like the suburb of Rossmoyne, RSHS is full of Indians, Chinese and other Asian nationalities whose families rent houses in the encatchment area or forge false residential information to get their child enrolled in the school and pressure them to purse medicine. The children of these families are usually in a bad situation as their parents are often control freaks and severely punish them if their academic performance is poor. This parenting strategy often leads to the kids becoming unbalanced individuals who either:
1. Lack many basic social skills and a decent understanding of the Australian culture. Both of which are integral to getting a job outside of driving a calculator.
2. Grow to envy the freedom that their Australian and Asian friends (whose parents aren't control freaks) have so much, that they go on a massive sex, drug and booze rampage when they finally break free.

Despite its flashy reputation, RSHS has a lot of the same problems that other Australian highschools have in regards to drug and violence. After school fights are usually waged at the nearby Rossmoyne IGA. These battles are usually very one sided. Consisting of the school yard bully taking on people who have little to no experience fighting simple because he and his drugo mates don't like the other person.
"When I Drove past the Rossmoyne IGA at 3:30, I could smell marijuana"
"must be the drugos from Rossmoyne Senior highschool"

"I'm sending my kid to Rossmoyne, It's a good school"

Despite the drugos and tiger parents, RSHS is what all public schools should aspire to be. As it provides better quality education than most private schools for free and the student population doesn't consist of trust fund brats who brag about how much their Daddy makes on the mines.

Rosisterie 

The act of a threesome (2 females and 1 male), where in the females wear strap on sexual devices and insert one into the males rectum and one into his mouth, effectively putting him on the Rosisterie.
Dude, don't do a 3some with those two girls, Its not as much fun as you think and i have not pooped right in a week! they like the rosisterie!
Rosisterie by Rowdy42 April 22, 2011