vocabulary and diction

IMO... like when you trim a pork belly for bacon.... it's all the meat and fat.... I use it for Char Sui.... Chinese BBQ pork...

Dave has a good example of pork trimmings.  Trimmings in general are the pieces of pork that you have in excess, not used in a meal.  For example, some trim the fat cap from a pork butt and save that.  I sometimes take some meat off the brisket of a spare rib and that can be called trim.  Heck you can even buy pork trimmings like boneless picnic meat for sausage.  You have a example of trimmings from a hog that will be used for sausage.  Same can be said for beef.  Beef trimmings are often used for ground beef [and sausage].  Reinhard