A dog owner carrying a see-through bag of shit while walking their dog. Though they are being responsible by picking up their dog's crap, nevertheless, they are walking around with a bag of nasty shit in their hands!

A comment made to someone with very ugly face

A shit-bagger is someone who makes excuses for his or her favorite politician no matter how much shit that politician may inflict on the public. Typical forms of shit-bagging are blaming all the favorite politician's mistakes on the previous administration, or the media, or some kind of conspiracy.

A term refered to shitty ass drummers who have trouble getting accepted to Berklee college of music

n., One who shit bags

Etymology:

'Shit bag' derives from the Latin 'shitius baggus', which in early Roman tragic theatre represented the potential to spoil a positive scene. The shit bag would be hurled at an actor at random.

The colour brown has since been associated with shit-bagging.