It could be taken negatively or positively depending on how your day went but it's the feeling after you had a really bad day or a really good day and you just lay down and melt away but at the same time become whole again. You disconnect with the world and connect with yourself.
I'm feeling sand/Sandy because I need to get more connected with myself. It's the feeling when you lay down and disconnect yourself from the work which makes you commect more to yourself.
While having HappyLove Time with your significant “Brother” In the doggy style position, Slap the back of his head and shove a fistful of sand in his anus and twist and turn until he screams Sandy Cheeks
HeyMikey, remember that time I gave you a Slippery Sandy in the back of the trailer. And you screamed so loud that Joe heard you say Sandy Cheeks and we got caught.