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An extreme form of scat. A bowel-movement mixed in with an up-chuck of sorts.
Hey! Did you see that 2girls1cup video? That was Grade-A sewer syrup!

I was digging this girl, and she seemed to want to put out. So, I went to her house, we got on the couch, and she shat in my face. However, after I puked back into her asshole, she came. I've had better sewer syrup in my days.
by HorrorFK July 06, 2009

Words related to Sewer Syrup

2girls1cup barf ffxi gross scat sewer shit syrup throw up up chuck