1. any restraining device of stainless steel, wood, bamboo, oragomi, or any other so functioning substance which restains anything living or dead from surpassing a designated boundry.
2.really cool
When someone takes a turn so wide and fast in their vehicle, that when they get to the end of the turn, they start driving up against the guardrail, tearing up their vehicle, and giving unwanted attention to the rail, thus raping it.
Driving Teacher: Well, Suzie, you pretty much raped the guardrail on that wide turn you made on the intersect. I'm going to have to fail your driving test.
A guy does a chick up against the wall, and she then precedes to start shitting. the guy rubs her back and forth on the wall smearing the shit, and making a line that looks like a rusty guardrail.
I gave my girl a rusty guardrail last night and made her clean it up this morning.