Severe Diarrhea that can also come with extreme nausea, shivers, and fatigue.
My buddy can't come tonight he's got that Iraqi butt disease.
by Joseph Beef December 29, 2017
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When you are infected with SBD you are willing to pay 5X-10X the market value of a clapped out miled out oil leaking rust bucket Subaru because it's got a turbo!!!!
"Jennifer just told me she bought a 2001 Subaru WRX with 300k miles for $12,000! She told me it has an STI motor and a salvage title."

"Wow dude, she's got Stage 4 Subaru Brain Disease"
by Nived67 January 28, 2020
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