A term referring to a piggy-bank meaning;
1. To
literally shake a piggy-bank to collect the coins within or;
2. To figuratively not spend any money in a situation that would normally require it (i.e. A
penny pincher, tight fisted, cheap, ) or;
3. You could "shake someone's pig" by continuously bumming money/food off of them.
Generally reserved for people who are poor or broke.