sandmertrans Share definition Flag A transgender mermaid (or merman) with sand in their vagina and/or butt crack. And then the sandmertrans let loose a screech as it tried to rid itself of the sand in its crevasses. sandmertrans by Baconfresh July 2, 2016 0 0 Get merch Get the sandmertrans mug. Buy Now — $32.95 See more merch