Verb:
When taking a poop, of such that it is like wet sand, it piles up like a sand castle above the toilet water.
When taking a poop, of such that it is like wet sand, it piles up like a sand castle above the toilet water.
by McHuge3 November 18, 2013

When Banging a girl from behind and on the beach. You spit on her back just before you blow your load and as she turns around you blow it in her face then throw sand in her face and call out,"Sand Csstle Biatch!"
by Mikey February 17, 2005

When a public toilet becomes clogged, but people continually defecate into it, overfilling it with feces until the fecal matter stands on it's own weight in the bowl and over the toilet itself, often resembling a sand castle.
by Ballz Johnson September 7, 2016

When during an anal sex creampie, you carry her to the kitty litter box with your dick still inside of her anus and then have her cum-fart into the catbox for the cat to bury.
I gave this girl an ALABAMA SAND CASTLE last week, her cat hid the pie in the castle. She's gettin' the ol' alabamy sand castle after we get cat litter.
by barkingspider September 26, 2011

Someone who just ruins your day. It doesn't help them at all other than to make them laugh. They suck.
by Jesus152 December 20, 2010

by Papa Jay June 11, 2006

Euphemism for engaging in intimacy, esp. with a hater and a gatekeeper, who is also God's favourite princess, and the most interesting girl in the world (see Shadowheart). Originated in Baldur's Gate 3, an RPG released in 2023 by Larian Studios.
Shadowheart: "Though I'm still finding sand in my hair - I wonder what the others will think of that..."
Tav: "They will naturally assume we snuck away to make sand castles in the middle of the night."
Shadowheart: "But of course they will. I hope we'll have more opportunities to slip away... and make sand castles."
Aliona Baranova: "Sometimes you can just tell when someone's good at making sandcastles, right? I haven't tested my theory, but I feel like I know... I feel like you can tell, by someone's personality, if they're good at making sandcastles or not. What do you think?"
Jennifer English: "I'm bad at making sandcastles."
Jennifer Sandcastles: "I'm very good at making sandcastles, for the record... I'm great at sandcastles, call me Jennifer Sandcastles."
Tav: "They will naturally assume we snuck away to make sand castles in the middle of the night."
Shadowheart: "But of course they will. I hope we'll have more opportunities to slip away... and make sand castles."
Aliona Baranova: "Sometimes you can just tell when someone's good at making sandcastles, right? I haven't tested my theory, but I feel like I know... I feel like you can tell, by someone's personality, if they're good at making sandcastles or not. What do you think?"
Jennifer English: "I'm bad at making sandcastles."
Jennifer Sandcastles: "I'm very good at making sandcastles, for the record... I'm great at sandcastles, call me Jennifer Sandcastles."
by Eclipsekidney October 3, 2025
