Damdevil 

Someone who worships the use of Axes being wielded by escaped dwarfs from hell while at the same time enjoys country music, walks in the park and romantic dinners for two

Hey Brandon did you see that damdevil over there, he ripped that woman a new one

Damdevil by Stevion October 21, 2008

dame ningen

From Japanese, a "useless human" or no good person, who is usually a NEET, and is without value to society. They are well despised and pitied.

He has no job, no degree, and only watches anime... obvious dame ningen.

dame ningen by Phunnnn February 15, 2015

Damellia 

A loving and caring person who you can trust. Extremely responsible and the person you can count on when you need her the most. She’s loyal and is funny but sometimes corny. Damellia is a beautiful woman who will give you amazing advice and will be the best friend you can ever have. If you have a Damellia in your life cherish her.

Damellia the best friend you could ever have

Damellia by Dope boy 23 May 28, 2019

Classy Dame

A classy female, or otherwise polite woman. This may also be in reference to Anna, The Classy Dame, according to Zane and Ami.

Anna is the Classiest Dame I know. You are one Classy Dame

Classy Dame by Digital Royalty June 30, 2008

dobler dahmer theory 

A theory stating that if two people are into each other, a big romantic gesture works, but if one person isn't into the other, the same gesture comes off serial killer crazy.

Look, there's a fine line between love and insanity. It's the dobler dahmer theory.

dobler dahmer theory by Yangarang June 19, 2016

Beaver dammed 

The "cock block" for the female. When a girl is effectively cock blocked she has been beaver dammed.

She was beaver dammed by her girlfriend when she dropped the herpes word in front of the new guy

Beaver dammed by jennyjustjenny December 20, 2012

doing a dahmer 

Pulling a practical joke. Before Jeffrey Dahmer was a psycho serial killer, he was an alcholic class clown at his high school. Classmates reffered to any practical joke or crazy antic as "doing a Dahmer". Later, it would come to mean "killing, having sex with, and dismembering a man".

see the A&E Biography of Jeffrey Dahmer for the actual mentioning of this phrase

Joe: Kevin was just doing a Dahmer right in the middle of class
John: Oh my God! The teacher didn't stop him?!
Joe: Dude, calm down. It means played a joke.

doing a dahmer by Amata May 23, 2008