detailer 

person that spends way too much time cleaning and polishing (detailing) an automobile to such a high standard that merely looking at it too hard will cause "swirls"

yo fam be careful with the wip, i just got it back from the detailer. Now look at these sick vape clouds

detailer by rich1351 March 20, 2019

Derailed 

1. During the act of doggy-style vaginal intercourse, the male, while recovering from a thrust, pulls out too far and his penis "accidentally" inserts itself into the girls anus.

2. An arctic map in the video game "Call Of Duty: Modern Warfare 2."

1.

"The other night my girl moaned some other guys name, so I derailed her. See if she does that again..."

2.

"Last night I was having some fun, then got derailed"
"You pulled out too far and got mud on your junk?"
"Worse. I got that shitty snow map."

Derailed by FunkyPunkyJunky March 20, 2010

Derailed 

A women losing her virginity in a very rough, hard manor.

Guy 1:Dude, I totally just derailed this one chick!
Guy 2: Me too!

Derailed by Wendy (bob's girlfriend) January 22, 2009

derailed 

to fuck the shit out of somebody, then never talk to them again despite seeing them around a lot. Usualy occurs between upper and lower classmen in high school and college.

bro 1: jon derailed that chick at that party
bro 2: I know, shed in two of his classes to
Bro 1: awesome

derailed by jon Appleseed August 25, 2008