What is Swing Bag?
1.
Someone who is a douch bag, homo, or retard etc..
You you are such a swing bag
Bill yeah a swing bag
Look at thoes swing bags
2.
Referring to male genitalia, specifically the testicals. Also known as applebag, ball sack, bozak, nuts, etc.
I dropped my swing bag on your mom's face, because she wanted a Roman Soldier Helmet.
See