Comes the fall weather, you go out with your family for a day of apple picking. While you're picking apples to make pies, you decide to eat several large apples. When you get home it is then when you realize your asshole is about to open widely and you literally shit a soup consisting of large chunks of apples.
Common among military tuck drivers deployed to Iraq. Occurs when the seat of the vehicle absorbs the swamp ass from one driver then before it can dry another driver mixes their own sweaty swamp ass in the seat cushion resulting in a swamp ass soup.
Dude, you swamp assed this seat. So. Well I got swamp ass too and now we just createdswamp ass soup.