Beer coaster maths 

It is associated with basic/rough figures traditionally done on the back of a beer coaster at a pub while drinking.

An example might be mates working out the cost of a fishing trip, so "Fuel will be about $100, bait about $50, accom about $200 and good about $200". So rough/approximate figures.

According to my beer coaster maths, it would be about $500. But if you want a more accurate number I'd obviously have to look it up, speak to the suppliers etc.

Beer coaster maths by Damian W November 17, 2016

roaster coaster

The use of marijuana while snowboarding/ skiing

John- wanna go snowboarding ?
James- hell yeah! Let's roaster coaster.

roaster coaster by Thor5105 February 4, 2017

Rollin Coaster 

Is a move only highlighted by only the absolutely best Faux DJ's on the planet. This fancy move consists of holding both of your hands up in the air while a massive drop takes place. While your hands are in the air, the crowd is magically fooled into thinking that your amazingly, unmatched talent, has just transitioned into another track all by itself, or did it?

Jim: Dude, Martin Heretix just laid down the biggest drop I've ever heard!
Bob: Were his hands in the air?
Jim: Yeah, how'd you know? Wait a minute are you here at the Festy?
Bob: Absolutely not! To pull out the Rollin Coaster would be like DJ Qbert doing the Macarena.

Rollin Coaster by DJ Max Portland August 9, 2017

Roader Coaster 

A road, especially a highway, with an unusually high number of steep hills and/or winding turns, such that driving on it feels like riding a roller coaster.

Passenger: Dude, all these hills are starting to make me sick.
Driver: The heck you talking about? This roader coaster is awesome!

Roader Coaster by Vinderex April 20, 2018

crypto-coaster 

The term used to describe trends in Bitcoin and other cryptocurrencies.

Hop on the crypto-coaster! It'll be the ride of your life! Become a billionaire or lose it all at once!

crypto-coaster by z0mbieparade May 28, 2018

Diaper Coaster 

When Rahul has a breakdown

I just need to chill. My head is spinning like a diaper coaster

Diaper Coaster by henryhess26 October 16, 2019

Roller Coaster Hot 

Hot in a trashy way. Trailer park big-tittied women you'd see at an amusement park, in line for a roller coaster. Probably near-topless while trying to hide her partial fetal alcohol syndrome.

I'd definitely fuck that roller coaster hot chick, but not anywhere but the public Cedar Point bathroom.

Roller Coaster Hot by HiImHondos July 8, 2020