1. One who is so poor, that they lack toilet paper, and are forced to use sand as a replacement.
Commonly used to call somebody very poor. A common term for a sandmann is 'Sandy Cheeks'
2. One who is irritated because they have sand up their ass

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.

he is soooo gay. all he does is cry over girls he dated when he was thirteen and still hasnt gotten over them and because of that he decides to molest every girl in his path no matter how sassy she is. the end