Brown Pinky Promise 

When you and your partner and or friend each insert a pinky finger into the others asshole, pull out and intertwine your pinky’s and promise each other to never do that shit again.

Ali and Eric made a Brown Pinky Promise. To never get drunk like that again.

Brown Pinky Promise by Nosila Smada 13 December 18, 2020

P. Diddy Promise

DEFINITION: A promise that CANNOT be broken.

Based on P. Diddy's unbroken promise to give Justin Bieber a Lamborghini when he turns 16.

EXAMPLE:

DAD: I P. Diddy Promise that I will get you a PS3 for your birthday in 3 months.
(3 Months later)
SON: THANKS FOR THE PS3 DADDY!!

P. Diddy Promise by MyNamesJ12 July 23, 2010

The Promised neverland 

This Anime Is terrifying and sad.
Explains why children have higher IQ then most adults

Person 1:did you watch The Promised Neverland
Person 2: yeah after that I never watched anime again :/

The Promised neverland by Jam Jam Kookie October 26, 2019

Promise 

Basically, its a new way of lying. Mainly used by guys who want girls to get off their backs. Also see lies

Boy:I will always love you.
Girl:promise?
boy:yup. I promise.

Two weeks later -

Boy:I'm sorry. It's over.

Promise by !emoXvampire! June 8, 2009

promised neverland 

best anime ever. its not gay like naruto

jerry:i like naruto
norman:frik u promised neverland is better

promised neverland by Jungterssssss December 12, 2019

A "Nature's Promise" 

The execution of an extremely satisfying bowel movement. A wholesome dump.

Dawg, after the chowing down at that churrasco, I needed to let go of a "nature's promise". Feeling ten pounds lighter.

A "Nature's Promise" by Beef401 January 12, 2022

promise ring

A ring of any shape and size as long as it’s not from a gum machine that portray you marrying he/or she in the near future. Most likely you two will never marry or you would have given her an engagement ring

Baby, with this promise ring. I promise that some day, don't know when or don't know how but we will get married...Now close the door,it's getting a little chilly

promise ring by Robbie G October 23, 2007