Schmuck is not the word I'd use for your former boss. Something a little stronger, like harasser comes to mind. Do you live in the U.S.? If so, his behavior could be considered sexual harassment.

Is this person still employed at your company? If so, I hope someone reports him to HR and if nothing is done, someone should file a complaint with the EEOC. That is cruel and humiliating. Behavior at someone's expense like that should never be tolerated in the workplace.

As an overweight working woman, I would have appreciated a 'heads up' from you about his little game. it may have been embarassing from you but much better than the public humiliation of his comments later.

At least you know how words can hurt.