The Great Replacement 

When Facebook or Twitter redesign their interface and then roll it out to everybody so you can't use the old one, even though it's a steaming load of crap.

Facebook updated Messenger again? Great, even though this new design is crap here comes the Great Replacement all over again.

The Great Replacement by America Lover 🇺🇸 August 9, 2019

go away or I will replace you with a simple shell script 

A semi clever quip made by computer geeks and gurus.. Quite similar to the military quip " You are so fucking useless, I should replace you with a button"

go away or I will replace you with a simple shell script by Guru June 15, 2003

Replacement

The substitute

The Replacement is the person you replace or switch for someone you're just not getting along with

Replacement by Mich PorkChop August 31, 2017

Replaceonym 

Replaceonym. A word within a list of possible spelling corrections presented in a dialog box over a misspelled word after running a spell-check engine.

A list of replaceonyms usually pops up within a dialog box when a computer screen cursor moves over the identified misspelling within a spell-checked document.

In the case of the misspelled word "feelin", the spell-check engine suggests the following replaceonyms in a pop up dialog box:
feeling, feel in, feline, and felon.

In the case of the misspelled word "scool", the spell-check engine suggests the following replaceonyms in a pop up dialog box:
school, scoop, scoot, scold, spool, stool, scowl, cool

Replaceonym by Doctor Fruitbomb July 3, 2009

Replacement dog 

The dog you get to replace the one who just died.

Lady at the park: You have an adorable puppy.
Me: Thanks, she's a replacement dog.
LatP: What do you mean?
Me: She replaced the dog that just died. In fact, I think she one-upped her.

LatP: You're horrible.
Me: pssh, bitch

Replacement dog by Joe Everyman June 30, 2010

replacement fuck buddy 

A person who sole purpose is to pick up the slack from original fuck buddy. I.e. a stand in fuck buddy while the original fuck buddy is not meeting attendance requirements, sexual satisfaction requested, and/or exceeding preset relationship boundaries. See fuck buddy code for reference.

Friend: Raymond hasn't given me any in a few weeks.
Me: Girl, you need a replacement fuck buddy.

replacement fuck buddy by Ms.Ellis October 20, 2015

Replaceable 

There must be a point when you get to be a feudal lord (or the female version of one) where everything and everyone becomes replaceable in your over indulgent lifestyle, even if you took something/someone from someone else that wasn't replaceable to them (something/someone they didn't surrender to you) to replace something/someone you no longer had an interest in.

Everything in his/her machine is a replaceable part of the collective machine, as he/she would call it. There is no bigger picture, its simple.

Replaceable by Solid Mantis December 19, 2019