sandmanster 

An object and/or creature that rises from the sand causing ultimate destruction to ones mental stability.

Sandmanster, People with the name "Keith", Sloths

sandmanster by Unsustainable December 28, 2013

sandmonster 

When a person hides between the bed sheets and covers of another's bed and waits for them to lay down on top of them. Once they lay down, the person from below immediately grabs them like a monster that hunts in the sand

"Dude, Robert totally sandmonstered Chester!"

sandmonster by Raidon January 14, 2008

sandmonster 

an annoying person, a person who get's on people's nerves without a reason, or a person who hurts your feelings.

You're such a sandmonster.

sandmonster by THEJJN February 14, 2024

Sandmeisterwon 

A tiktoker who happens to be the Nathan fan ever, also goes by @sandmeisterwon_2

Guy #1: Nathan is the best south park character, I bet I'm his biggest fan
Guy #2: Nah, @sandmeisterwon is definitely the biggest Nathan fan

Sandmeisterwon by GhostingAndBoasting April 9, 2022

Sandmanst 

Sandmanst, a user popular in the REDACTED discord server (and my heart).
He is a skilled artist, who when asked what he thinks of anothers art, will not comment until severely put upon.
He also often blocks people (undeservedly), and then refuses to elaborate on why he doesn't love them.

"Wow, are you a sandmanst? Because you blocked me won't tell me why you don't love me! "
"What do you think of my art, sandmanst?"

Sandmanst by Professional Mech Molester August 17, 2022