Sandmanning

The act of crop dusting your significant other or spouse by silently farting into your hand and “magically sprinkling” it over their nose right before they fall asleep.

Rodney: It sucked man I had to sleep on the couch last night.
George: Why, what’d you do this time?
Rodney: I got caught sandmanning the old lady, it was bad George, it was burrito night.

Sandmanning by Evol E July 16, 2019

Sandmanning

The act of throwing a cup water on an unsuspecting victim with hopes that it will dissolve them.

Candys lied awake in her gammy's bed that night hopping to see if the Sandman existed. When a figure walked past, she totally sandmanned it thinking she was catching the Sandman himself. Turns out, she ended up sandmanning her own grandmother.

Sandmanning by The Moneymaker December 26, 2011

Sausmanning 

creating made-up "evidence" for uploading on the internet, in order to use this same "evidence" to back up a failing argument.

She was caught sausmanning her "evidence" in an attempt to provide "proof" for her argument with Bill about QAnon's claims.

Sausmanning by AllieghyaRodeham September 13, 2020

sandbanking 

When a person entrusted with establishing a greater group benefit, discreetly and intentionally creates a greater benefit for themselves.

Person A "He did well at negotiating a good deal for all of us" Person B "Actually he's got a better deal himself it appears he's been sandbanking"

sandbanking by Saint17 October 6, 2017