Engine Swap 

To pull a internal combustion engine from its original vehicle and put another in its place.

Pulling a V6 from a sports car and putting a V8 in it instead, would be considered a engine swap

Engine Swap by 3.4Lto5.7LSwapCamaro December 10, 2012

kentucky swap 

The act of lying about having to pee to cut in the line of the bathroom of a fellow bathroom goer that has to shit then proceeding to lock the door and shitting

Steve Kentucky swapped me and I almost shit my pants.

kentucky swap by Firecat087 November 28, 2015

Turd Swap

Get your girl to lie on her back and lift up her legs. She then spreads open her arsehole and you proceed to shit in it. She then shits out your shit back into yours. This can be repeated many times.

I did a turd swap with my girlfriend last night, we have come really far in our relationship.

Turd Swap by StJohnsUrbanTruthTeller August 11, 2017

Ubisoft-Swap 

When a company (or really anybody) does a Massive Bait-and-Switch where they show you something that Looks amazing with great graphics and features, and then you buy it, thinking it would be like that, and the product was Downgraded, streamlined, and is Nothing like they promised upon release. Fallout 76 is a great example, as well as Watchdogs and Many Ubisoft titles with graphics-downgrade scandals. Thus, the Ubisoft-Swap is when a product that was shown to you is significantly changed, most often Reduced in quality the day they sell it to you.

Gamer 1: "dude did you see that Watchdogs E3 demo with all the amazing weather and lighting effects? That looks amazing!"
Gamer 2: "That's an Ubisoft-Swap man. There's no way it will look like that and don't buy it before you compare it."
Release: See Gamer 2 response.

FO76: "It will have all New weather, lighting, and landscape Technology."
Release: "Well, we didn't 'lie.' it is all New, right? It's a New game, so we didn't 'lie' to you."
Sane Gamers (99%): "Are you serious? We were Betrayed and Ubisoft-Swapped!"

Anthem E3 Demo: "WOAH! This looks amazing! amazing weather, graphics, guns, gameplay, So Many things that are like Cool!!"
Release: "WTH is this? I've been Ubisoft-Swapped!"

Ubisoft-Swap by MCPKG October 25, 2019

Sloppy Swap 

The act of defecating in someone’s asshole, then having your partner proceed to expel their bowels.

Do you want to get crazy tonight and sloppy swap with me?

Sloppy Swap by Gbeans February 25, 2020

awkward switch swap 

the act of walking towards somebody and trying to switch sides of the hallway or street, when they switch to the same side as you, and you try to switch back and they switch to the same side as you.

person 1: that chick totally awkward switch swapped me.

person 2: what a cunt!

awkward switch swap by the :#r May 12, 2010

check out swap out 

When a shopper fills their cart with anything that looks interesting or good, giving absolutely no thought to the cost of these things. They proceed to the check-out lane and hold up the line as they ask the cashier to scan different combinations of items, until they finally decide on a group of things that they are happy with *and* can afford.

While most people with a limited amount of shopping money would take the time to add up prices in their mind/on paper/on a calculator, and estimate their total, this person seems to believe that they can grab whatever and it will just magically work out somehow. No matter how many times they leave without everything they selected, they will always try it again next time.

After watching the cashier scan four items for the current customer, only to remove three and then be asked to scan two more, Jim realized that this check out swap out was going to take a while.

check out swap out by DobbyCanOnlyBeFreedIf October 9, 2013