Grindeldore 

In the Harry Potter fandom, Grindeldore is the term that identifies the slash ship featuring Albus Dumbledore and Gellert Grindelwald. On October 19th, 2007 at Carnegie Hall in New York City, J.K. Rowling, the creator of the Harry Potter series, answered a fan's question about Dumbledore's love life by saying that she had always thought of him as gay and that he had fallen in love with Grindelwald.

My gaydar went off all over Grindeldore when I first read the Deathly Hallows, didn't yours?

Grindeldore by KirkWilkins November 7, 2007

morgan grinder 

Slang term used in place of "girlfriend". May also be used to describe a variety of household appliances.

You takin' out the (morgan) grinder? You old dog, you.
Just throw that burrito in the morgan grinder and heat her up for a minute.

morgan grinder by Fernando S. May 27, 2006

Non-Grinder 

A non-grinder is someone who does not grind whatso ever. They either lack the capability or willingness to do so. Non-grinders tend to be lazy unemployed pieces of shit, who don't grind.

"Damn that dude Arvind is a huge non-grinder. I wish he would grind harder."

Non-Grinder by Thugmuffins July 2, 2017

Speak to the organ grinder not the monkey. 

Wanting to talk to the boss not his sidekick.
Organ grinders being the boss, and the monkey being the one who helps him out.

Normally used in a conversation to describe the 'monkey' as someone who's interfering and defending or covering for the the 'organ grinder'.

Shut up! I wish to speak to the organ grinder not the monkey.

Speak to the organ grinder not the monkey. by Jadeeeeeeee8 May 30, 2010

gash grinder 

a rather colourful nickname for lesbian

cheryl : so, you got a boyfriend at the moment?
sandra : who me? of course not. i'm a gash grinder, dontcha know
cheryl : that's...nice

gash grinder by MrCasual January 6, 2011

Buzz Grinder 

Someone who motorboats a moose knuckle.

"John got a Buzz Grinder from Jenny"

Buzz Grinder by Tiderunner February 23, 2017

Depression Grinder 

A videogame where the player performs mundane tasks repeatedly (aka grinding) in exchange for rewards (that are usually randomized and disappointing) in lieu of fun and compelling gameplay.

"Ugh, why would you buy lootboxes in a depression grinder like that?"

"I quit World of Warcraft when I realized how much of a depression grinder it is."

Depression Grinder by IMJL January 2, 2018