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1.
A creamy serving of Man Juice. While it does not have to be served in a bowl, it does add to the splendor of the meal.
Last night after a toe-curling head job, I served my girlfriend a nice hot load of sack soup.
by Mr. North April 20, 2009
 
2.
See: Duck Butter

The soupy film that is present after a long hot day of sweating in your man regions. Golf and basketball are great ways to produce Sack Soup.
I'm really cooking up the sack soup on the back nine today!
by phi582 June 29, 2006