When you pass a large crap (often after a struggle to pass it) into the toilet that is so big you experience anal bleeding and the toilet water splashes up onto your ass, thus resembling a red faced angry salmon splashing about in a fisherman's bucket.
Oh my god I just passed a real angry salmon" or "my ass is bleeding after being bitten by the angry salmon I just passed" or "hey guys check out my angry salmon
by Mandudno August 23, 2010
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