axe to grind 

To have a grievance with someone, especially where one feels the need to seek damaging retribution.

The phrase probably originates from the act of sharpening an axe with a grinding wheel, with the intent (in this definition) to get revenge on someone by maiming or killing them. ;)

"Five years ago that guy stole my idea for an invention and made tons of money off it! I've had an axe to grind with him ever since. My latest invention will put him out of business for sure, you'll see! Muwahahahaha!!"

axe to grind by Humpty March 6, 2007

BUMP N GRIND 

The P.C. name for "sex on the dancefloor." When a guy (usually very drunk and horny) moves behind and gets up as close as possible to a girl to dance to a rap song.

The only way to dance to 50's "Candyshop" song is to bump n grind. It's like practically having sex on the dancefloor.

BUMP N GRIND by Tres14 July 31, 2008

get ya grind on 

To Get On Your Hustle Majorly. To Get Money Doing Whatever You Are Good At./ Usually Referring To Young Hustlers By O.G'S.

O.G: how long u been runnin this strip? Yung Gun: About 3 Months. I Been Movin Major Weight Out Here. O.G: Fa Sho, Get Ya Grind On Lil Nigga.

get ya grind on by Eazy$haun April 18, 2006

Back to the grind 

A saying used to describe going back to work or school when it's a weekend, usually when angry or stressed out.

Today is sunday. Back to the grind tomorrow.

Back to the grind by m_12 April 19, 2018

The Law of Conservation of Grind 

Proposed by historians Sir Keeler Gonzales, Empress Mai Ton, and Archduke Sai Sriram in the early 21st century, on the campus of William Marsh Rice University, the law of conservation of grind states that the grind never stops but merely takes different forms. Grind takes three principle forms, potential grind, kinetic grind, and party grind ("grinding" grind as it is known outside of the intellectual community). Potential grind is given by the expression Mass x hours of sleep x g (the grind constant). g=69 grinds/sec^2. Kinetic grind is given by the expression (1/2)Pp^2. P=panic constant p= procrastination factor. Party grind is the inverse of kinetic grind, but can increase exponentially as given by dA/dt (alcohol over time). This Law has been widely accepted in the scientific and educational communities.

Person A: I need to rest, I've been working too hard today.
Person B: But A, I thought the grind never stops??
Person A: According to the law of conservation of grind, I am merely converting my kinetic grind into potential grind.

The Law of Conservation of Grind by President David Leebron December 8, 2017

jet grind radio 

the first game that ever had cell shading
aka in japan jet set radio

jet grind radio by Anonymous August 2, 2003

rise and grind

A variation of "rise and shine" but replacing shine as grind, as saying having to deal with the "daily grind".

Mike: "Yoooo... man that party was steezy last night, but we have a final exam today".

Nate: "Damn, well rise and grind".

rise and grind by goodaypo11 November 13, 2010