The Rollercoaster

When you're in 8th grade and a guy grabs your hand and swirls it in a rollercoaster like motion down his leg while massaging your hand towards his dick. He eventually leads your hand to the outside of his jeans and rests it on his bulge. You may try to distract him and reverse rollercoaster your hand to your own leg, but eventually he will unzip his pants and slide your hand in.

I went to the movies with John last night and he got on the Rollercoaster.

The Rollercoaster by Eltonjuan June 9, 2019

the roller-coaster

Sex position where your partner sits on top of you and you both put your hands up and scream as if on a roller coaster. At the point of climax a stranger comes in and takes you picture. You then have the option to purchase the picture for $12.

Tosh.0 episode idfk that has the roller-coaster in it

the roller-coaster by Gamefreak324 December 1, 2013

Riding the Roller Coaster 

When one alternates between lines of cocaine and smoking marijuana continuously, one is said to be "riding the roller coaster".

Jim: Has the Baweej been smoking weed and doing lines of coke all night?
Marty: Yeah, he's been riding the roller coaster.

Riding the Roller Coaster by Jegster July 14, 2010

The Roller-coaster Principle

An analogy between activities of a sexual or romantic nature and a roller-coaster, or any amusement park ride. According to this philosophy, the engaging in sexual activities with a partner one does not find aesthetically satisfactory in order to receive a similar treatment from his/her far better looking friend is equivalent to waiting in line (a mundane and unpleasant activity) in order to get on a roller-coaster (a thrilling and exhilarating experience). The roller-coaster principle may also be used to describe the opposite: waiting in line for an amusement park ride that ultimately is not worth the wait. Details of the roller-coaster riding experience also directly apply to the metaphorical analogy. For example, vomiting on Kingda Ka would be the equivalent of vomiting while having intercourse with Meghan Fox. The Roller-coaster Principle, so long as the roller-coaster is in fact superior to the wait in line, exempts any male or female from being ridiculed for "waiting in line".
Can also be defined as "exploitation and manipulation".

Guy 1: As one of my closest friends, I simply cannot allow you to accept that female's offer of fornication. She is simply horrendous!
Guy 2: You mustn't forget that said lovemaking increases my chances of performing similar acts on her tantalizing and voluptuous compatriot without need of Roofies!
Guys 1 & 2 in unison: THE ROLLER-COASTER PRINCIPLE!
*Highfive*

The Roller-coaster Principle by supercoollad July 7, 2010