Top Definition
The widespread sharing of complete bullshit through social media. Via repetition and popularity, tribal sewage generally becomes accepted as fact despite its obvious inaccuracy.
Dude 1: Check out this awesome new muffler I just installed on my Honda Civic. My friends say it will give me at least 20 horsepower.

Dude 2: Where did you hear that, on the forums? They're spewing so much Tribal Sewage, I'll bet you get 5 horsepower MAX out of that fart can.
by Scooter12ga October 26, 2010
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